Skip to main content
Books/Facial Aesthetics: The Anatomy of Natural Results/Chin and Jawline Design: Architecture of the Lower Face
Chapter 1010 min read

Chin and Jawline Design: Architecture of the Lower Face

The chin and jawline have become the center of aesthetic decisions, especially after the age of 35. This section explains chin architecture, gender-specific differences, and the structural logic of jawline filler.

Main ideas in this chapter

  • A woman's chin is softer, more oval; a man's chin is sharper, closer to square.
  • Jowls disrupt the facial oval with age; jawline filler redraws this line.
  • Chin filler should be done with a firm product, at bone level; superficial filler is ineffective.

Gender-specific jaw anatomy

Ideal characteristics of a female jaw: more oval, wider mandibular angle (approximately 130-140 degrees), moderate mental (chin tip) protrusion, soft lines. Ideal characteristics of a male jaw: narrower mandibular angle (110-120 degrees), more prominent mental protrusion, sharp lines.

These differences are not universal rules; cultural and individual variations occur. However, performing jawline filler in a "gender-sensitive" manner is a critical rule for a natural result. Soft filler in men and sharp filler in women will lead to unsuccessful results.

Jawline filler techniques

Jawline filler is performed at three points: (1) mandibular angle (gonial angle) — below the ear; (2) mid-jawline (anterior-posterior middle) — center of the jawline; (3) mental (chin tip). A firm product (such as Juvederm Volux, Restylane Defyne) is placed deeply at each point, resting on the bone. Superficial filler is ineffective in this area — it has "low lifting power."

Jowl (sagging jaw) and filler

Jowl forms as a result of soft tissue getting caught in the mandibular ligament. There is a paradox here: filling the jowl itself worsens the situation. The solution is to fill the hollow in front of the jowl (pre-jowl sulcus) to reduce the jowl's "prominence." When filler is also added to the posterior mandibular angle, the jawline naturally becomes more defined again.

Classic "chin tip enhancement" approach

  • Filler only on the chin tip
  • Feeling of pushing the chin forward
  • Jawline still blurry
  • Insufficient for age 40+

Modern jawline design

  • Three-point filler (angle + middle + tip)
  • Entire jawline becomes clear
  • Filling of the pre-jowl area
  • Adaptable to all ages