What is Matrixyl?
Matrixyl, chemically known as palmitoyl pentapeptide-4 (Pal-KTTKS), is a synthetic peptide derived from the procollagen I sequence. It functions as a matrikine, a signaling molecule that regulates cell activities in the extracellular matrix. The addition of a palmitoyl fatty acid chain enhances its lipophilicity, allowing it to penetrate the stratum corneum effectively. Researchers originally developed this peptide to stimulate collagen production and repair photodamaged skin. It is widely utilized in dermatological research and cosmetic formulations for its structural remodeling properties.