Why does this guide start in spring?

Skin is a much more seasonal organ than many patients realize. Skin that has been covered, exposed to low humidity and central heating during winter must adapt to increasing light, fluctuating humidity, and gradually rising temperatures in spring. This transition is the most misunderstood period for the face.

A large portion of my patients complain that their skin, which was comfortable in winter, suddenly becomes temperamental in spring. Often, the problem is not the skin, but that the routine has not changed. This book was designed precisely to fill this gap, to show every patient that the language of the season is a learnable behavior.

What changes in skin physiology in spring?

The strength of sunlight increases, days lengthen, and environmental humidity begins to fluctuate. In the same period, the dermatological footprint of pollen and air pollution increases. Corneocyte cells on the skin's surface are sensitive to changes in moisture; the oil reserve produced in winter may now be excessive, leading to acne, fungal-like follicular irritations, or seborrheic flare-ups.

During this period, melanocytes, the pigmentation cells, also begin to be stimulated. It is not yet summer, but UVA radiation, unlike in winter, reaches the dermis and lays the groundwork for spots. So, a significant part of the problem seen in spring is related to not having designed the skin before summer begins.

What happens when summer arrives?

With the increase in temperature, sebum production and sweating change significantly. Skin pH temporarily rises; this affects the microbiota and triggers patients prone to acne. UV load peaks; therefore, photoprotection should become an indispensable habit throughout the summer.

The most common complaint in summer is shine. Patients often turn to more aggressive cleansers to make their skin appear matte; however, skin with barrier damage produces more oil. This is one of the main messages of this guide: even in summer, we manage the skin by balancing it, not by drying it out.

• Sebum and sweat production increase, routine weight should be balanced.
• UV load peaks; photoprotection should be repeated daily.
• Air conditioning, sea salt, and pool chlorine cause barrier fatigue.
• Pigment cells are more easily stimulated; existing spots may darken.
• Free radical load increases; antioxidant support becomes critical.

Is the season your barrier's friend or foe?

The barrier is your skin's intelligent wall that filters every external impact. In spring, sudden temperature changes, and in summer, chlorinated water, air conditioning, and high UV, slightly erode this wall. A fatigued barrier can make the skin's surface appear dry and oily underneath; maskne, itching, sensitivity, and redness may begin.

Therefore, as summer approaches, my primary goal is to strengthen the barrier and establish a photoprotection regimen that does not tire it. For a patient, the biggest investment in summer is not "more products" but "the right order."

Seasonal differences in female, male, young, and mature skin

Hormonal fluctuations can be a melasma trigger, especially in women; in men, beard area folliculitis and barrier damage due to summer shaving are more common. While acne usually worsens in adolescence during summer, loss of elasticity and pigment density become more pronounced in patients over 40.

This guide includes sections divided for each subgroup. Because a single summer routine cannot be right for everyone; the smart approach is to notice the nuances that vary from skin to skin.

Oxidative stress and free radicals

When sun, pollution, intense physical exercise, and stress combine, skin cells are exposed to reactive oxygen species we call "free radicals." These molecules target cell membranes and DNA; they accelerate collagen breakdown, trigger pigmentation, and increase signs of aging.

Antioxidants neutralize the effect of these reactive molecules. In spring and summer, antioxidant support should be increased both topically (Vitamin C, Vitamin E, ferulic acid, resveratrol) and systemically (polyphenols, carotenoids, rich plant-based nutrition).

I strongly recommend including an antioxidant serum in your morning routine. The antioxidant + SPF combination can provide 20-30% higher total protection than SPF alone. This is important practical information; many patients cannot benefit from the true potential of SPF because they do not use antioxidants.

Light and skin color biology

Melanin is the natural pigment that protects the skin from UV. However, when its activities are uncontrolled, undesirable results such as melasma, post-inflammatory hyperpigmentation, and solar lentigo occur. Fitzpatrick skin types are classified as I-II light, III-IV medium, V-VI dark.

As skin type darkens, the UV burn threshold increases, but the likelihood of pigment problems also increases. Dark-skinned patients have a longer delay in skin cancer diagnosis; therefore, an annual examination is recommended for all skin colors.

What is the UV spectrum and why is it all important?

Sunlight is not just heat. Its spectrum is very broad: although UV (ultraviolet) constitutes a very small part of it, this part creates the most important photobiological consequences for the skin. It has three main groups: UVA (320–400 nm), UVB (290–320 nm), and UVC (200–290 nm). UVC is largely blocked by the ozone layer; it is UVA and UVB that truly concern the skin on the ground.

UVB stays on the surface; it is at the center of burns, redness, and DNA damage. UVA, on the other hand, penetrates deeper; it reaches the dermis, causes elastin-collagen damage, and is the main source of long-term photoaging and increased pigmentation. Even on a cloudy day, a large part of the UVA load continues.

Visible light and infrared: the new generation photothreat

Studies conducted in the last 10 years have shown that not only UV but also HEVL (high-energy visible light) and IR-A (infrared) are significant for photoaging and especially for hyperpigmentation in darker skin types. For this reason, the importance of sunscreens that protect not only against UVA/UVB but also contain mineral (zinc oxide, titanium dioxide) and pigmented components has increased.

In patients with melasma and a tendency for spots, chemical filters alone may not be sufficient. Further in this section, the selection of the correct sunscreen will be discussed as a separate topic; here we focus on understanding the biological background.

UV dose and timing

The UV index (UVI) varies by time of day, geography, and season. In Turkey, between 11:00 and 16:00 in June-August, the UVI usually rises to the 8-10 range; this is the "very high" and "extreme" band. During these hours, sun protection is not just an aesthetic but a medical necessity.

Most of my patients say, "I don't get burned." However, in patients with darker skin tones, UVA damage is cumulative; even doses that do not cause burns trigger collagen damage and pigment accumulation. Sun exposure is not a matter of "feeling," but a matter of accumulation.

• Between 11:00 and 16:00, UV is at its peak in Turkey.
• A cloudy day transmits up to 70% of UVA.
• Water and sand can increase the UV load by 20-80% through reflection.
• Glass windows block UVB but transmit UVA; damage occurs even during driving.
• Shade reduces the total dose but does not eliminate UV.

Effects of UV exposure on the skin

In the short term, burns, redness, and acute inflammation are observed. In the medium term, tanning is actually a defense response; it is the skin's response to DNA damage. In the long term, collagen loss, elastosis, solar lentigo (age spots), actinic keratosis, and skin cancers come into play.

According to data from the American Academy of Dermatology, 80-90% of age-related skin changes are not chronological but photographic, meaning UV-induced. In other words, a large part of what is called aging is actually sun damage. This information makes sunscreen a health tool, not a luxury.

Vitamin D paradox: is the sun good or bad?

Patients often ask: "If UV is so harmful, what about vitamin D?" This is an important question. The truth is: a few minutes of controlled UVB exposure to the skin is sufficient for vitamin D synthesis. A few minutes on the arms and legs, 2-3 days a week, outside of peak UVI, is sufficient for most healthy individuals.

In patients with a tendency for spots, melasma, or a history of skin cancer, trying to get vitamin D from the sun is not logical in terms of risk-benefit; vitamin D can be supplemented orally and blood levels monitored. The argument that sunscreen blocks vitamin D has largely become invalid in current literature.

Four layers of photoprotection

Modern photoprotection is not just about applying cream. I advocate a four-layered approach: behavioral (avoiding peak hours), physical (UV-protective clothing, wide-brimmed hat, UV glasses), topical (sunscreen), and systemic (antioxidant support, nutrition).

Effective protection begins when these four layers work together. Relying solely on sunscreen is not practically sufficient; because most patients do not apply enough, the actual SPF remains very low. In the following sections, I will explain the correct application logic in great detail.

Skin cancer and regular examination

Melanoma, basal cell carcinoma, and squamous cell carcinoma are the most common skin cancers. The vast majority are successfully treated with early diagnosis. It should not be forgotten that increased sun exposure in Turkey during the summer months is the cornerstone of cancer cases developing decades later.

Golden rule: at least once a year dermatological examination after the age of 30, showing suspicious "new" or "changing" moles to a doctor, knowing the ABCDE rule (Asymmetry, Border, Color, Diameter, Evolution). If there is a family history of skin cancer, patients with many moles, fair skin, and intense lifelong sun exposure may need more frequent follow-up.

Photoallergy and phototoxicity

Some medications (tetracycline, amiodarone, furosemide, some NSAIDs, some psychiatric medications) and cosmetic ingredients (bergamot oil, perfumes) can cause the skin to react in an unfamiliar way when combined with sun. These reactions sometimes resemble sunburn, sometimes present as eczema.

When you start a new medication, ask your doctor about sun interaction. Do not apply bergamot-containing perfume to the face; be careful with citrus oil contact.

What does SPF tell us, and what doesn't it?

SPF (Sun Protection Factor) measures the protection provided against UVB; it indicates how many times longer it takes for erythema to form on the skin. SPF 30 theoretically blocks 97% of UVB; SPF 50 blocks approximately 98%. Although the difference may seem small, the reason I prefer SPF 50+ is that patients practically do not apply enough product, causing the actual SPF to drop significantly.

SPF only provides information about UVB. For UVA protection, look for the PA+++ or PA++++ label (Japan-Asia standard) or the "UVA" logo in a circle and "broad spectrum" statement in Europe. UVA rays are long-wave, deeply penetrating, and pigmentation-causing rays; a product with insufficient UVA protection cannot prevent photoaging despite a high SPF.

Chemical filter, mineral filter, hybrid formulation

Chemical (organic) filters absorb UV energy and convert it into heat, neutralizing it; they provide a thin, comfortable, and aesthetically invisible formulation. New-generation molecules such as avobenzone, octocrylene, tinosorb S, and tinosorb M provide broad-spectrum UVA + UVB protection.

Mineral (inorganic) filters are based on zinc oxide and titanium dioxide; they reflect and scatter light. They are my first choice, especially for sensitive, reactive, couperose, pregnant, and baby skin. With advancements in technology, micronized or encapsulated mineral formulations have significantly reduced the whitening effect.

Hybrid formulations contain components of both types and offer an excellent balance for most adults. Pigmented (iron oxide-containing) mineral formulations are particularly valuable for patients with melasma because they also block visible light.

• Acne-prone skin: "non-comedogenic," "oil-free," gel or fluid texture SPF 50+.
• Dry/mature skin: rich, moisturizing formulation; may contain hyaluronic acid, niacinamide, or panthenol.
• Sensitive/rosacea-prone skin: pure mineral, fragrance-free, alcohol-free formulation.
• Melasma: iron oxide-containing (tinted) mineral formulation.
• Male skin: fast-absorbing, non-shiny matte finish, alcohol-free product.
• Under makeup: non-setting, matte finish, or slightly luminous formula depending on the person.

How much to apply? The two-finger rule

The recommended amount for an adult face + neck is approximately 2 mg/cm², which practically means two finger-lengths (not too much, just right) of SPF. The vast majority of patients use only a quarter of this; as a result, a high SPF product practically drops to an SPF 10-15 level.

Approximately 2 fingers per arm, 3-4 fingers per leg, and 5-6 fingers for the back are recommended. Besides the face, behind the ears, sides of the neck, nape, shoulders, and back of the hands are easily forgotten; these areas are the most common "forgotten" skin cancer risk areas.

When to reapply?

Every sunscreen maintains its SPF value only for a certain period after the first application. Due to the reduction in protection caused by sweat, contact, towel contact, air conditioning, and natural loss, reapplication every 2 hours is the medical standard.

In the sea, pool, or during active outdoor sports, the reapplication interval drops to 80 minutes. Therefore, one tube may not be enough for your vacation; I recommend keeping separate products in the home-beach-bag-car quartet.

Common traps on labels

There are terms like "water resistant," "waterproof" on the market. The FDA has banned the term "waterproof" since 2011; the correct terms are "40 minutes water resistant" or "80 minutes water resistant." It must be reapplied after this period.

Some products carry the "reef safe" label; this means they do not contain certain chemicals (such as oxybenzone, octinoxate) that are considered harmful to coral reefs. This is related to environmental impact, not health risk.

Proper storage and expiration

Sunscreen usually maintains its protective effects for 12 months after opening, some formulations for 6 months. The protective power of an SPF left in high temperatures (e.g., in a summer car trunk, a bag left in the sun on the beach) drops dramatically.

If there is a change in smell, color, or texture in the bottle, discard the cream. Look at the PAO (period after opening) symbol on the package (e.g., 12M) and try to consume it within that period.

SPF choreography at the beach and during sports

Two fingers of SPF 50+ at home in the morning before going out. A second layer 15-20 minutes after arriving at the beach (while the first application is absorbed). Reapply again after coming out of the pool or sea, before touching with a dry towel. Reapply every 80 minutes.

Although this choreography may seem complex, it becomes automatic if you repeat it for 3 days. Over time, it becomes your "SPF ritual." This is the only discipline you owe your skin throughout your vacation.

What is the barrier, and why is it important?

The skin barrier is an intelligent defense system composed of the building blocks of the outermost layer called the stratum corneum. Corneocyte cells form the bricks, and the ceramide/cholesterol/fatty acid mixture between the cells forms the mortar. This system both filters external factors and retains water within the skin.

In skin with a healthy barrier, TEWL (transepidermal water loss) is low; the skin remains soft, flexible, and resilient. In skin with a fatigued barrier, redness, burning, itching, dry patches, and increased sensitivity are observed. The spring transition is the period when this balance can be disrupted most rapidly.

What goes wrong during the transition?

A significant portion of patients suddenly revolutionize their routine with the arrival of summer. They stop or double their retinol, add a new acid, strengthen their cleanser, and get a peeling session in the same week. This accumulation leads to barrier breakdown.

The correct approach is a gradual transition. The switch from winter cream to summer formulation is made not overnight, but over two to three weeks. New actives are added one by one; 3 new products are not started simultaneously in one week.

• Reduce your retinol dose by 50% or halve the frequency of use.
• Apply AHAs/BHAs 2-3 times a week instead of once a day.
• Look for ingredients that add moisture to your cleanser; avoid overly foamy, high-pH soaps.
• When trying a new product, wait 4-5 days for other actives.
• Think of your entire routine like a dinner plate: just as there is a balance of protein + vegetables + carbohydrates, a balance of moisture + active + protection is essential.

Barrier-friendly ingredients

Ceramides, cholesterol, and fatty acids are building blocks that the skin produces itself; creams that supplement these components externally rapidly repair the barrier. Niacinamide strengthens barrier function, manages pigmentation, and raises the skin's inflammation threshold.

Panthenol, allantoin, beta-glucan, centella asiatica (cica) actives are among the classics with a calming effect. For patients whose complaints have just started, a 4-6 week repair period containing these ingredients is often sufficient for revision.

What to add and remove in spring?

Add: Light antioxidant serum (Vitamin C, resveratrol, ferulic acid), niacinamide, high SPF, plenty of fluids.

Remove: Very heavy winter creams, unnecessarily dense occlusive occlusions, frequent and aggressive peelings, unnecessarily multiple active combinations.

Hidden harbingers of barrier damage

The sudden onset of skin surface shine, a burning sensation when you apply your active, daytime itching, stinging after lipstick or makeup — all of these are harbingers of early barrier fatigue. When visible redness appears, the problem has usually progressed.

Not missing early warnings prevents the transition to chronic sensitivity. Develop a habit of daily skin observation: evaluate your face for 10 seconds when you look in the mirror in the morning.

A barrier-friendly repair week

If the skin is clearly fatigued, implement a 7-day minimal repair week: only gentle sulfate-free cleanser, pure ceramide-niacinamide cream, high SPF. No retinoids, acids, enzyme peels, or fragranced products.

By the seventh day, your skin's surface will be more even, brighter, and more resilient. From this point on, reintroduce actives one by one, every other day, at a low dose.

• Monday: minimal routine + ceramide-based cream.
• Tuesday: mineral SPF + antioxidant serum.
• Wednesday: barrier test with gentle cleanser.
• Thursday: niacinamide morning + evening.
• Friday: first low-dose retinoid reintroduction.
• Saturday: waiting and observation.
• Sunday: light AHA/BHA only if necessary.

Why is summer acne different?

With increasing temperature, sebum (oil gland secretion) production increases; the balance of oil mixed with sweat, dead cells, and microbiota changes. This combination accelerates comedo formation, which is a prerequisite for acne.

At the same time, sunscreen, makeup, and sweat mix with the skin throughout the day; chlorinated water and sea salt add an extra burden to the barrier. As a result, summer acne may not resemble classic hormonal acne in terms of both frequency and distribution.

Most common types of summer acne

Classic inflammatory acne (papules, pustules), "maskne"-like mechanical acne seen on the forehead and back, follicular flares, and sun-induced Mallorca acne (acne aestivalis) are common in summer.

Not every type is managed with the same approach. For example, mistaking folliculitis for acne and applying BPO (benzoyl peroxide) can worsen the condition. Therefore, physician evaluation is very valuable for stubborn or suspicious acne.

• Inflammatory acne: salicylic acid, BPO, topical retinoid.
• Follicular acne: antifungal support, mild antibacterial.
• Mechanical acne (tape, mask, helmet area): reduce friction + barrier support.
• Sun-induced acne: mineral SPF, oil-free formulas.

The right summer acne routine

Morning: a gentle gel cleanser, light antioxidant, oil-free SPF 50+. Evening: double cleansing (single if no makeup), a thin topical active (retinoid or BHA), light moisturizer.

Retinoids can also be used in summer; however, the dose, frequency, and SPF discipline must be very clear. Retinoids started in summer are decisive in long-term control of both acne and pigmentation. Each patient may react differently; treatment should be followed up.

When to seek help at the clinic?

Stubborn acne that leaves scars and does not respond to 6 weeks of topical treatment requires a physician's approach. In advanced cases, combinations of topical and oral treatments, peels, microneedling, and some laser approaches play a role.

However, laser selections made during the summer months are particularly critical; incorrect selection can cause pigmentation. Collaborating with a physician who understands the seasonal calendar is the most appropriate approach.

Nutrition, hormones, and acne

There is consistent data in the literature that high glycemic index diets, dairy products, and whey protein consumption increase acne in some patients. However, this is not equally valid for every patient; individual follow-up is important.

Stress and insufficient sleep stimulate sebum production through cortisol balance. As a result, acne is a condition managed not only on the skin but also underneath it.

Acne flares are typical, especially in female patients, during the luteal phase of the menstrual cycle. If PCOS, insulin resistance, or other endocrine conditions are suspected, dermatologist-endocrine collaboration may be valuable.

Summer acne on the back, chest, and shoulders

After facial acne, the most common locations are the back and chest. In summer, thin clothing, tight swimsuits, bra straps, and frequent sweating increase follicular blockage in these areas.

Salicylic acid-containing cleansing gels, benzoyl peroxide body cleansers, and topical retinoid formulations for treatment-resistant cases work for these areas. However, these actives can bleach towels, bedding, and towels; the warning is important.

• Shower immediately after sweating: the first 15 minutes are critical.
• Cotton, breathable clothing.
• Pay attention to hair products flowing onto the back.
• Risk of follicular inflammation under athletic tapes.
• 8-12 weeks of back acne treatment is normal; patience is essential.

Spot family: what resembles what?

Solar lentigo (sun spot) are sharp-edged, flat, brown spots; they are the trace of accumulated UV damage over the years. Ephelides (freckles) are genetic and darken with sun exposure. Melasma is usually symmetrical, map-like, concentrated on the cheekbones and forehead; it is hormonal and light-dependent. PIH (post-inflammatory hyperpigmentation) is secondary pigment that develops after acne, pimples, burns, or procedures.

This distinction is important because treatment plans differ. For example, while Q-switched laser is effective for sun spots, the same laser can worsen melasma. Correct diagnosis is as valuable as treatment.

Why is melasma stubborn?

Melasma is not just a superficial pigment problem; it carries pigment and vascular components in the dermis (deep). Therefore, surface-focused treatments alone are often insufficient.

Hormonal fluctuations (pregnancy, oral contraceptives, hormone therapy), UV, and even visible light are triggers. The same patient can reset months of treatment after a short vacation. Therefore, the treatment plan is a lifestyle plan along with photoprotection.

• Mineral + iron oxide containing SPF 50+ is mandatory daily.
• Wide-brimmed hat + UV glasses.
• Topical depigmenting agents: azelaic acid, kojic acid, arbutin, tranexamic acid, niacinamide.
• Hydroquinone-containing combination formulas under medical supervision (when necessary).
• Chemical peeling: lactic, mandelic, glycolic - in controlled doses.
• Laser (low dose, perfectly suitable device, only with an experienced physician).

Is summer season the time for pigment treatment?

There are treatments that can be done in summer and those that should not. Mild chemical peels, low-intensity mesotherapy, certain topical protocols, and microneedling can be safely applied for specific indications.

On the other hand, laser sessions that penetrate from the surface to deeper layers, medium-deep peels, and ablative lasers are generally postponed during summer due to the risk of post-inflammatory pigmentation. The ideal calendar is between late September and early April.

Daily life recommendations

I recommend my patients view melasma like seasonal asthma: a chronic facial condition that flares up with provocation and is kept under control with management. With this framework, treatment is approached more patiently.

We accept that UV exposure cannot be eliminated; however, details such as smart clothing, hats, UV coating on windows, and discipline regarding in-car exposure dramatically reduce the total load.

Post-inflammatory hyperpigmentation (PIH)

A dark spot that forms after acne, eczema, insect bites, burns, or minor trauma is PIH. It is especially common in patients with medium to dark skin tones. Treatment primarily involves resolving the trigger (e.g., calming active acne) and supporting it with low-dose depigmenting agents.

Important principle: PIH usually fades gradually within 6-18 months. Aggressive lasers and peels can accelerate this fading while also increasing the risk of a "rebound." A patient approach is the safest approach.

Daily life recipe for pigment treatment

Morning: antioxidant serum (Vitamin C + ferulic acid) → niacinamide or tranexamic acid serum → moisturizer → mineral SPF 50+ containing iron oxide. Evening: gentle cleansing → depigmenting serum (azelaic acid or kojic acid) → retinoid (3-4 times a week, according to tolerance) → moisturizer.

Patients following this routine show measurable improvement after 3-6 months. An important warning: In patients with Asian-Mediterranean skin, especially unnecessarily strong actives can cause pigment rebound; medical follow-up is essential.

What is moisture, why is it lost?

A healthy oil-water balance in the outer layer of the skin determines both its soft appearance and its defense function. In summer, heat, loss through sweat, and air conditioning-related environmental dryness increase TEWL. Additionally, intense SPF, chlorine, and sea salt lead to topical dehydration.

Dehydrated skin can be oily or dry. This distinction is critical: looking oily is not the same as being full of moisture.

Distinction between humectant, emollient, occlusive

Humectants (hyaluronic acid, glycerin, urea in low concentration, sodium PCA) draw water to the skin's surface or from the atmosphere. Using them alone in dry air can create a risk of dehydration.

Emollients (squalane, niacinamide, fatty acids, ceramides) fill intercellular spaces and soften the skin.

Occlusives (petrolatum, dimethicone, shea butter) seal the skin surface and reduce evaporation. They can be comedogenic on oily skin; selection requires care.

• Oily/acne-prone skin: humectant-based fluid, gel-cream, oil-free moisturizer.
• Dry skin: emollient + occlusive combination; especially a rich moisturizer at night.
• Combination skin: applying different products to different areas of the face (multi-stage approach).
• Sensitive/reactive skin: minimal ingredients, fragrance-free, mineral barrier supported.

Moisture cell hunger: signs of dehydration

The prominence of fine lines, dullness, makeup not settling on the skin, a feeling of tightness from within, and excessive oil production by the skin are all signals of dehydration.

Adequate hydration (internal fluid intake) is important; however, moisture cannot easily rise from within the skin. Therefore, topical support is indispensable. The internal-external balance is established together.

Additional recommendations: mask, mist, sheet

Moisturizing masks are helpful 1-2 times a week, during periods of intense moisture need. Mist sprays can be useful during the day, especially for those working under air conditioning. Sheet masks provide extra benefits but are not the cornerstone of the routine.

Such products complement the routine; they do not replace it. First a good foundation (cleanser + moisturizer + SPF), then layers.

What to do when moisturizer is not enough?

In some patients, external and internal factors (hormones, stress, menopause, certain medications) chronically affect barrier function. In this case, cosmetic moisturizer alone may not be sufficient.

Mesotherapy, skinboosters, and hyaluronic acid-based dermal hydration protocols provide clinically significant contributions in such patients. With light summer protocols, intradermal moisture replenishment over 3-4 sessions can achieve hydration levels not attainable with topical products alone.

Moisture in the neck, décolleté, and hands

Most patients forget the neck, décolleté, and hands when applying moisturizer to their face. However, these areas are the fastest aging, most UV-exposed, and driest areas. Especially the neck and décolleté should be massaged gently upwards, not with vertical movements.

For hands, moisturizer after every wash and after SPF application; an extra restorative formula before bed in summer provides the most effective prevention of aging signs.

• Extend your face creams to your neck and décolleté.
• Keep hand cream ready in your bag; apply after every wash.
• A richer balm for your hands at night; cotton gloves if you wish.
• Behind the ears and earlobes are small, often forgotten areas.

Philosophy of the morning routine: protect and defend

Your morning goal is simple but critical: to prepare your skin for the UV, pollution, temperature, and oxidative stress it will encounter throughout the day. Therefore, the morning routine should be built with protective layers, not heavy actives.

A typical morning routine is 5 steps: gentle cleanser (or just water) → antioxidant serum → eye cream (optional) → moisturizer → SPF 50+. Sometimes it's more than five, but there's no need for a routine with more than ten steps.

• 1. Gentle cleanser or just water
• 2. Antioxidant serum (Vitamin C, ferulic acid, niacinamide)
• 3. Moisturizer (light, summer formulation)
• 4. SPF 50+ (two-finger amount, including neck and ears)
• 5. Optional: light sunscreen foundation or tinted mineral SPF

Philosophy of the evening routine: cleanse and repair

The evening routine is about cleansing the accumulated burden of the day from the skin and supporting the biological process of self-repair overnight. At night, skin cell renewal, collagen production, and repair mechanisms become active.

Typical evening routine: double cleanse (oil-based + water-based cleanser), targeted serum (retinoid, niacinamide, AHA/BHA), eye cream, moisturizer, occlusive balm if necessary.

• 1. First stage: oil-based balm or micellar
• 2. Second stage: gentle face cleanser
• 3. Active serum (retinol/retinoid, AHA, BHA, peptide)
• 4. Eye cream
• 5. Moisturizer
• 6. If necessary, repairing balm or sleeping mask

Why is the order important?

Classic rule: from thin texture to thick texture. Watery serums first, then cream. Actives like retinoids are generally effective on dry skin; penetration increases on damp skin, but irritation can also increase.

SPF should always be the last step of the routine. Do not mix SPF with cream; the protection factor decreases. Makeup comes after SPF.

10 common mistakes in summer routine

• Using too many actives at once.
• Applying aggressive peels in a vicious cycle.
• Skipping moisturizer.
• Applying insufficient amounts of SPF.
• Not reapplying SPF during the day after morning application.
• Using cleanser for too long, stressing the skin.
• Forgetting the eye area.
• Excluding the neck and décolleté from the face routine.
• Using heavy, sticky products in hot weather.
• Trying every new product and abandoning it without establishing a routine.

Customized summer example according to your skin type

Oily skin morning: micellar cleansing + oil-free SPF 50+; evening: salicylic acid cleanser + BHA serum (every other day) + light gel-cream.

Dry skin morning: creamy cleanser + antioxidant serum + rich moisturizer + high SPF; evening: oil-based cleanser + peptide serum + rich cream.

Combination skin morning: gentle gel cleanser + light serum + localized moisturizer + SPF; evening: double cleanse + retinoid (twice a week initially) + light moisturizer.

Sensitive skin morning: just water or micellar water + minimal antioxidant + pure mineral SPF; evening: gentle cleansing + barrier-repairing cream. Actives under medical supervision and at a slow pace.

Changing routine: when, how?

The routine is reviewed if the skin produces a significant complaint, if you haven't seen real results within 6-8 weeks, or if you've entered another life stage (pregnancy, menopause, medication change). But changing the entire routine with every new trend is the biggest result killer.

Waiting 4-5 days when adding a new product, doing a patch test, and not starting more than one active at a time are golden rules. Change makes tracking easier.

Skin during flight

The humidity in an airplane cabin is usually between 10-20%, which is drier than the Sahara desert. On long flights, the skin becomes severely dehydrated; dark circles under the eyes, dry patches, and sensitivity are observed.

Keep makeup light before the flight, and use an intense moisturizing balm, lip balm, and eye care during the flight. 500 ml of water in small sips every hour is a standard I recommend.

Beach and pool protocol

Apply SPF 15-20 minutes before entering the sea or pool. Let the first product absorb into the skin, then apply another water-resistant layer on top. Reapply every 80 minutes (or immediately after coming out of the water).

Upon returning from the beach, always gently wash your face with fresh water; sea salt and chlorine have an irritating effect on the barrier. Taking a short, lukewarm shower, then applying moisturizer is important for the skin to recover.

• Wide-brimmed hat and UV-filtered glasses.
• Choosing the beach before 11:00 AM or after 4:00 PM.
• Preferring to spread with hands instead of spraying on the face.
• Colored SPF instead of water-resistant SPF + makeup.
• Drying with a dry towel; gently pressing without rubbing the face.

Post-vacation recovery week

The week of return is a week for resting the skin. Aggressive actives (high-dose retinoids, acids, peeling products) should be postponed for at least 5-7 days. Recover the skin with intense hydration, antioxidant support, and a minimalist routine.

If a significant sunburn developed during the vacation, wait 7-10 days for it to heal before undergoing procedures such as laser, IPL, or deep peeling.

What is jetlag skin?

Jetlag affects not only sleep but also circadian skin biology. Cell renewal, cortisol rhythm, and microcirculation can be disrupted. Therefore, the skin may appear more sensitive for the first 3-4 days after long flights.

With good sleep, water, light meals, and minimalist care, the skin regains its rhythm in 3-5 days.

Vacation in tropical and high UV regions

The UV index on Mediterranean coasts can exceed 10 in mid-summer; in South Asia, the Caribbean, and regions near the equator, it is in the 11-12 band. In these regions, a single sunscreen is not enough; multi-layered protection is required.

UPF 50+ certified clothing, a wide-brimmed hat, UV glasses, active plans in the morning and evening, and the habit of staying in the shade during midday hours should be standard in these geographies. If you are traveling with children, this discipline is mandatory protection education for them.

Skiing and sun at high altitudes

A vacation is not limited to summer. In winter, UV exposure at high-altitude ski resorts can easily exceed summer days. UV intensity increases by 10-12% for every 1000 meters; snow reflects up to 80%.

Therefore, SPF 50+ broad-spectrum, UV glasses, face protective balm, and reapplication every 2 hours are indispensable for ski vacations. Photoprotection on the lips (SPF 30+ lip balm) is particularly critical.

• Ears, nose tip, and lips are forgotten areas when skiing.
• Snow reflection creates a double dose of UV.
• Wind and cold increase barrier load, occlusive balm is important.
• Glasses should block UVA + UVB + blue light.

Procedures that can be done in summer

Botox (neurotoxin) applications can be safely done in summer; sun exposure should be avoided for 4-6 hours after injection. Fillers can be applied especially to the lower face, lips, and jawline; however, for serious summer vacation plans, the period of mild swelling should be considered.

Mesotherapy, skin boosters, and mild PRP protocols can be applied even in mid-summer. Mild chemical peels (mandelic, glycolic 20-30%), superficial versions of microneedling, and non-ablative radiofrequency are generally in the safe category.

• Botox: yes (with photoprotection).
• Filler: yes, plan according to your holiday schedule.
• Mesotherapy, skin booster: yes.
• PRP: yes, in mild doses.
• Superficial chemical peel: yes, in controlled doses.
• Microneedling at superficial depth: yes, in early summer and late summer.
• Laser hair removal: yes, if there is no tan and a suitable device is available.

Procedures you should postpone

Ablative (tissue-removing from the surface) lasers — fractional CO2, erbium — are planned for late summer/autumn and early winter. Medium and deep chemical peels, intense IPL sessions, and pigment treatments are considered risky.

After these procedures, the skin becomes very sensitive to light; unavoidable UV exposure in summer can cause serious pigment complications.

• Fractional ablative laser (CO2, erbium)
• Deep chemical peel
• High-dose pigment treatment
• Q-switched laser in mid-summer
• Aggressive microneedling (dose that causes scabbing)

Smart planning principles for summer

Share your holiday plans with your doctor. Finish the last major procedure at least 2-3 weeks before events such as weddings, holidays, or important presentations.

Think of mid-summer as a season for "maintenance continuation, not major renovation." Plan major transformation projects for autumn.

Maintenance procedures (Botox, light filler refresh, mesotherapy) can be continued in summer; your skin longevity plan is not interrupted.

Procedure planning on tanned skin

Laser and IPL can be risky for a patient who has just returned from vacation and is tanned. Darkened melanin can absorb more laser energy than intended, causing pigment complications. It usually takes 3-6 weeks for a tan to fade; treatment is planned after this period.

Needle-based applications such as Botox, fillers, and mesotherapy can be done more safely on tanned skin; however, UV exposure after injection should still be limited. Each case is evaluated separately.

Summer wedding planning

The wedding period is one of the most sensitive moments for medical aesthetic planning. A schedule starting 6 months in advance is ideal for brides and grooms.

6 months before: establishing a skincare and skin longevity routine. 4 months before: starting basic filler and skin quality treatments. 2 months before: final touches. 2 weeks before: only mild soothing procedures. Last week: no aggressive procedures are performed.

If this schedule is missed, interventions done in a panic during the wedding week can be a major source of dissatisfaction.

What is sensitive skin, and what is it not?

The sensitive skin label is widely used; however, clinically there are different subgroups. Rosacea is a condition characterized by vascular dilation and chronic redness; couperose, on the other hand, is the appearance of telangiectasias (capillary dilations) on the face. In atopic skin, the barrier is genetically weak.

There is no single template for each group; however, the common principle is to establish a barrier-friendly, non-irritating, minimal routine.

Summer triggers

Sun and UV, hot weather, hot drinks, spicy food, alcohol, intense exercise, stress, chlorine, perfume and aromatic components, and some cosmetics can be triggers.

Eliminating all triggers is not realistic; however, reducing the total load significantly alleviates clinical complaints.

• Morning + evening lukewarm water cleansing; not hot.
• Pure mineral SPF; chemical filters can be irritating.
• Alcohol-free, fragrance-free, gentle moisturizer.
• Shifting intense physical exercise to the evening hours.
• Control of spices, alcohol, excessive caffeine.
• Stress management, meditation, sleep routine.

Treatment alternatives

Topical: azelaic acid, metronidazole, ivermectin (prescription). Oral: low-dose doxycycline (should be monitored long-term). Vascular laser (KTP, pulsed dye) is classically applied for couperose and rosacea but is usually postponed in mid-summer.

Mild IPL protocols are planned after summer. Establishing an annual calendar with the patient is the wisest approach.

Rosacea and medical aesthetics

In patients with rosacea, the correct choice of physician and the correct timing directly determine the procedure results. An incorrectly timed procedure can lead to long-term flare-ups.

General principle: rosacea is first medically stabilized, then selective treatments such as vascular laser are planned. Botox and filler applications are not direct treatments for rosacea; however, in selected cases, they can contribute to overall skin quality.

Summer strategy for atopic skin

For patients with atopic dermatitis, summer can be both a good and a challenging season. While UV calms atopy in some patients, sweat and heat can trigger itching.

For atopic skin, choosing fragrance-free, sulfate-free, cotton-compatible products; intense ceramide support for the barrier; and topical steroids or calcineurin inhibitors under physician supervision during flare-ups are considered.

• Immediately shower after a chlorinated pool, then apply a rich emollient.
• Cotton, breathable underwear.
• Air humidifier with air conditioning.
• Reducing skin contact from hair products.

Biological differences in male skin

Male skin is, on average, 20-25% thicker and produces more sebum; collagen density is also relatively high. Therefore, signs of aging may appear slightly later but more suddenly than in women.

Testosterone affects sebum production and follicle size; acne is common in young adulthood. The beard area requires special attention due to microtrauma and folliculitis.

Minimalist male routine

Morning: gentle cleanser, light moisturizer, SPF 50+. Evening: post-shave care (or gentle cleanser), light active serum (niacinamide or retinol-compatible formula), moisturizer.

Even a five-step routine is sufficient for most men. The basic rule is "less but regular."

• SPF: light, gel-based, non-whitening.
• Post-shave: alcohol-free, fragrance-free soothing.
• Active: low-dose retinol or niacinamide.
• Moisturizer: oil-free, oil-balancing.
• Eye area: simple formula, not shiny.

Special warnings for summer

The hairline and back of the neck are the most affected but most frequently forgotten areas for UV damage. Men with short hair must use a hat or apply SPF.

Leaving home without showering after sports acts like a closed mask on sweaty skin; it leads to follicular flare-ups.

Renew your shaving ritual

Daily shaving is the biggest mechanical stress on the skin. The correct shaving technique involves softening the skin with warm water, using a thick layer of foam, shaving with the grain, and preferring a sharp and clean blade.

Alcoholic aftershave weakens the skin's barrier in the long run. Instead, use a balm containing niacinamide, panthenol, and aloe. If there is a tendency for ingrown hairs in the beard transition area, pay special attention to the direction of hair growth; light AHA/BHA 1-2 times a week helps in this area.

What does skin longevity mean for men?

The understanding of skin longevity in male patients is not to chase visible lines, but to preserve the skin's repair capacity and resilience. On this plane, preventive botox, peptide-based care, antioxidant protection, and periodic mesotherapy play important roles.

Avoiding major mistakes in the early years: SPF habit starting too late, late-diagnosed pigmentation, addiction to harsh cleansers. Patients protected from these mistakes encounter a much stronger starting point in their 50s.

Children's skin is not adult skin

During childhood, the skin barrier is not fully mature; transepidermal water loss is higher, and protective capacity is lower. Therefore, children's skin is more sensitive to UV.

Research shows that approximately 23% of lifetime total UV exposure accumulates before the age of 18. Thus, safe habits are established in childhood; they are only maintained in adulthood.

Recommendations by age

For infants (0-6 months): Shade, protective clothing, wide-brimmed hats, and time management are recommended rather than sunscreen. At this age, pure mineral SPF can be applied to small areas when necessary.

For young children (6 months-6 years): Mineral-based, unscented, fragrance-free SPF 50+ is preferred. A skin test (monitoring a small area for 24 hours on first use) is recommended.

For adolescents: Associating SPF with acne is a common mistake; oil-free, non-comedogenic formulations are available.

• For infants, shade, hats, UPF clothing are priorities.
• For 0-6 months, sunscreen only on small areas when needed.
• After 6 months: mineral SPF 50+.
• Teaching children the habit of applying their own sunscreen every day.
• Choosing an acne-compatible fluid SPF for adolescents.

School, swimming, and activities

Recess times at school are usually when UV peaks. The child should have their own hat, water bottle, and mini SPF in their bag. For children with swimming lessons, SPF should be applied before school and reapplied before swimming.

In summer camps, outdoor activities, and sports activities, family and instructor cooperation is critical. A child's protective behavior is learned by observing the adults around them.

Acne and SPF in adolescents

During adolescence, both acne and UV protection are on the agenda. Most acne medications make the skin sensitive to the sun; isotretinoin, topical retinoids, and some antibiotics are in this group.

During this period, non-comedogenic, light SPF formulations suitable for oily skin should be preferred. The belief that "SPF triggers my acne" often stems from incorrect product selection; when the right formula is found, SPF is part of acne treatment.

Tanning beds and solariums in young people

It is known that the use of solariums at a young age significantly increases the risk of skin cancer. WHO has classified solariums as Group 1 carcinogens.

The tanning trend, pressure to "look good," and social media increase solarium use in some young people. Therefore, awareness is the shared responsibility of family and physician. If there are self-tanning cosmetics for safe tanning, we should primarily recommend coloring this way, not through solariums.

Summer is over: where is my skin?

As September begins, take a look at a short film of your skin: is your skin tone even, is the pigment differentiated, have under-eye dark circles increased, are fine wrinkles prominent, is the barrier tired? This self-assessment lays the foundation for the treatment plan.

Late summer fatigue usually comes in the form of the quartet: photoaging + dehydration + pigment + barrier. Each requires a separate but combined approach.

First 2 weeks: stabilize

The goal during this period is to calm and repair the skin. Minimalist active, powerful moisturizer, gentle photoprotection, plenty of fluids and sleep. If you have retinoids, restart with a low dose; do not immediately enter aggressive pigment treatment with high doses.

Weeks 3-6: transition to treatment

After the skin has recovered, a transition to the protocol is recommended: light chemical peels, mesotherapy sessions, care primarily based on tranexamic acid or azelaic acid, enzyme peels that do not strain the barrier.

More pronounced effective protocols such as PRP, skinbooster, microneedling are also planned during this period; pigment treatments and IPL are transitioned to after 6-8 weeks.

• Peeling week
• Antioxidant serum initiation week
• Mesotherapy initiation week
• PRP session planning
• Microneedling protocol design
• Laser calendar for photoaging (after mid-October)

The entry into winter begins much earlier

Skin is a long-term organ; investments are made today for tomorrow. Skin that wants to be happy at the end of November starts in September. This mindset is the essence of the "skin longevity" approach.

Sun and protection

Question 1: "Is sunscreen really necessary on a cloudy day?" Yes. Although clouds partially filter UVB, 70-90% of UVA passes through. Protection is recommended for a UV index of 3 and above.

Question 2: "I sit in an office, is SPF still necessary?" Yes, glass transmits UVA; a mineral formulation is also recommended for blue light effect.

Question 3: "I have dark skin, do I need SPF?" Although dark skin types are more resistant to sunburn, there is a risk of DNA damage, melasma, and skin cancer. Lifelong protection is needed.

Question 4: "Does SPF inhibit vitamin D synthesis?" In real life, sufficient vitamin D needs are safely met with oral supplementation. Therefore, reducing photoprotection would be a wrong trade-off.

Sunscreen and application

Question 5: "Is SPF 100 really twice as good as SPF 50?" No. SPF 50 filters 98% of UVB, SPF 100 filters 99%. The difference is very small; the main difference is the correct amount and repeated application.

Question 6: "Is SPF 15 foundation under makeup sufficient?" No. The SPF of foundation remains very low in practice due to insufficient quantity. Apply a real SPF 50+ beforehand.

Question 7: "How safe is spray SPF?" It may not be sufficient alone as quantity measurement is difficult. I recommend spraying it on your face and spreading it with your hand.

Skincare routine

Question 8: "Should I apply retinol every day?" Initially 2-3 days a week, then every other day as the skin tolerates it, then daily. The dose is adjusted as needed in summer.

Question 9: "Should I store my vitamin C serum in the refrigerator?" It can be beneficial for some oxidation-sensitive formulations, but it is not mandatory for every formula. A dark glass bottle and a tightly closed cap are sufficient.

Question 10: "Is a 10-step Korean routine really necessary?" No. For most skin types, 4-6 steps are sufficient and more sustainable.

Question 11: "Should I wash my face every day?" Definitely in the evening. In the morning, only water or a gentle cleanser is sufficient depending on the dryness of the skin.

Medical aesthetics

Question 12: "Does it make sense to get Botox in the summer?" Yes, it is safe as long as you control UV exposure afterwards.

Question 13: "Does filler melt in the summer?" Hyaluronic acid fillers do not melt with heat; however, swelling may be slightly more pronounced in the first few days in excessively hot environments.

Question 14: "I am 25, is it too early to get Botox?" No, if there is mimic hyperactivity. The preventive dose is carefully planned.

Question 15: "How many PRP sessions should there be?" Usually 3-4 sessions, 3-4 weeks apart. Afterwards, maintenance every 6 months.

Question 16: "Does mesotherapy hurt?" Pain is minimal thanks to local anesthetic cream and thin needles.

Acne and spots

Question 17: "Is sunbathing good for acne?" No, although it may look good in the short term, increased melanin deepens spots and sabotages acne treatment.

Question 18: "Homemade lemon/vinegar recommendation for my spots?" No, it can be irritating and phototoxic. Physician-controlled professional depigmentants are safe.

Question 19: "Is toothpaste good for pimples?" No, it causes irritation. BPO or salicylic acid are more suitable for punctual spot treatment.

Question 20: "Can melasma be treated during pregnancy?" Some topicals (azelaic acid, niacinamide) are safe, others are contraindicated. Physician control is essential.

Nutrition and lifestyle

Question 21: "Is chocolate bad for the skin?" Refined sugar and dairy products trigger acne in some people; dark chocolate is an antioxidant. It is individual.

Question 22: "Does drinking water lighten spots?" Not directly; but adequate fluid intake is critical for overall skin health.

Question 23: "Do collagen supplements work?" There are studies showing the contribution of hydrolyzed collagen peptides to skin elasticity; but not as much as topical and lifestyle.

Question 24: "Does drinking coffee harm the skin?" Moderate consumption is fine, excessive caffeine can have indirect effects if it disrupts sleep quality.

Common mistakes

Question 25: "Will I apply the same routine every morning?" Yes, except for small seasonal adjustments. The discipline of the routine creates the effect.

Question 26: "Should I keep changing products?" No. The skin shows the true effect of the product after 6-8 weeks. Frequent changes prevent results.

Question 27: "More products mean better results?" No. A few correct products are always better than 15 wrong ones.

Question 28: "Can I try my friend's routine?" To a limited extent. Everyone's skin, hormonal status, and needs are different.

Question 29: "Is my skin getting used to it?" Tolerance develops to some actives; but the feeling of "losing its effect" is often wrong. Dose adjustment is done with a physician.

Question 30: "Is genetics enough to look good?" No. Genetics is the starting data; but what follows is entirely discipline, protection, and correct decisions.

Why do we speak with sources?

The field of medical aesthetics is a discipline much discussed in popular culture, but also rapidly growing in academic data. As a patient, it is important to evaluate the information you read with its source.

The recommendations I present in this book are distilled from the American Academy of Dermatology (AAD), the European Academy of Dermatology and Venereology (EADV), the British Journal of Dermatology, JAMA Dermatology, the Journal of the European Academy of Dermatology, international sun protection guidelines, and the current melasma/hyperpigmentation literature.

Main areas of reference

Photobiology: UV spectrum, photoaging mechanisms, DNA damage, and systemic effects.

Barrier science: Stratum corneum structure, ceramide/cholesterol/fatty acid trio, TEWL, barrier repair.

Pigmentation: Melanin biology, melasma pathophysiology, treatment protocols.

Medical aesthetics: Botulinum toxin, hyaluronic acid fillers, PRP, skinboosters, mesotherapy, laser technologies.

Skin longevity: Antioxidants, peptides, growth factors, collagen induction.

Reliable sources for patients

If you wish to do your own research, I remind you that publications from physician associations, medical school-affiliated journals, and patient summaries from PubMed are safer than popular blogs.

In Turkey, the patient resources of the Turkish Dermatology Association and academic dermatology journals provide up-to-date information.

• Turkish Dermatology Association patient pages
• American Academy of Dermatology patient area
• British Association of Dermatologists
• PubMed patient summaries
• DermNet NZ (educational content)

Selected current concepts

Some of the areas that have come to the fore in the last 5 years include: polyphenol-based antioxidant options, the effectiveness of tranexamic acid in melasma treatment, growth factors and exosome-based topicals, microbiome-based skin products, heat and moisture management technologies (cryo-care, infrared, radiofrequency).

Each of these technologies must be carefully filtered between hype and science. A device being new does not mean it is effective. Every new claim must be tested with independent, multi-center, comparative clinical studies.

How to engage with sources?

As a patient, you may want to research; this is healthy. However, reading the level of information is a critical skill: "case report" and "randomized controlled trial," "pilot study" and "meta-analysis" do not carry the same weight.

The most reliable practical approach: when looking for an answer to a question, see what at least 2-3 reputable sources say. When you come to your doctor, tell them what you have read and what questions you still have. This collaboration improves the quality of the outcome.

As a physician

As I conclude this book, I want to speak to you not just as a physician-patient, but as two representatives on a shared path. Over the years, I have welcomed many patients to my clinic; their commonality was this: good skin was not about transitioning to another face, but about achieving the best version of their own face.

Think of your skin as a relationship. Just as a good friendship spans years, just as good education requires time, skin health is established in the same way. Promises of quick results will distance you from the actual outcome.

What I want to leave you with

Sun protection is your most valuable medical investment for life. No serum, peel, laser, or surgery can replace proper photoprotection.

Let your skincare routine be simple; but disciplined. Instead of chasing short-term miracles, opt for long-term quality.

Don't get caught up in every trend. Your skin is a living tissue, not a social media stage.

Choose your physician based on experience, education, trust, and open communication. A good physician knows how to say "no" when necessary, as much as saying "yes."

Do not make aesthetic decisions in a hurry. A deferred decision is often wiser.

• Protect before and after, every day.
• Let the routine be short but consistent.
• Add actives little by little and with follow-up.
• The seasonal calendar is a pulse in the language of the skin; listen to it.
• Good nutrition, good sleep, good relationships are the silent heroes of the skin.
• Do not rush into procedures that carry a risk of regret.
• Dermatologist + medical aesthetic physician collaboration is your strongest assurance.

My wishes for the future

I hope that by the time you finish this book, your knowledge about your skin has increased. But my main hope is that the quality of your relationship with your skin changes. Instead of panic, expectation, and social media pressure; patience, care, and conscious decisions.

My team and I are always ready to support you on this journey. Even when you don't have an appointment, let this book be a friend that I believe will benefit your skin, even in the months we don't speak.

I wish you healthy, sunny, and balanced days.