Collagen stimulators are injectable treatments designed to promote the skin’s natural collagen production over time. Products such as poly-L-lactic acid or calcium hydroxylapatite act by stimulating fibroblasts in the dermis, supporting gradual restoration of tissue structure and firmness.

These treatments are highly individualized: the choice of product, injection technique, and treatment plan depend on the area, tissue quality, and patient-specific factors. Multiple sessions are typically required to achieve optimal results, which develop gradually over several weeks to months.

Collagen stimulators are medical devices, and their administration must be performed by a qualified physician. Side effects are generally mild and temporary, such as minor swelling or redness. Serious complications are rare when protocols are followed.