What are biostimulant fileri and how do they work?

Biostimulant fileri (calcium hydroxylapatite or poly-L-lactic acid based) are next-generation tretmani that stimulate the body's own collagen production at the injection site. While traditional HA fileri provide instant volume, biostimulants deliver gradual, natural tightening and remodeling. Their effects last 12-24 months and show progressive improvement over time. Used on the face, neck, décolletage, and hands.