FGF-1 vs Palmitoyl Pentapeptide-4

Binds all four FGFR subtypes (broadest binding of FGF family). Activates MAPK and PI3K downstream pathways. Promotes fibroblast proliferation, angiogenesis, and hair follicle cycling into anagen phase.

A member of the fibroblast growth factor family that promotes cell growth, tissue repair, and angiogenesis across multiple cell types. Studied for wound healing, hair follicle stimulation, and skin rejuvenation.

Binds TGF-β receptors on fibroblasts, upregulating collagen I, III, fibronectin, and hyaluronic acid synthesis. The palmitoyl chain provides lipophilicity for improved skin penetration into the dermis.

A lipopeptide consisting of a palmitoyl fatty acid attached to the pentapeptide KTTKS. A key component of Matrixyl 3000 formulations. Stimulates collagen and extracellular matrix production more potently than palmitoyl tripeptide-1 (Matrixyl) alone, particularly for deep wrinkle reduction.