Recombinant Type XVII Collagen Inhibits EGFR/MAPK/AP-1 and Activates TGF-β/Smad Signaling to Enhance Collagen Secretion and Reduce Photoaging

Skin photoaging, primarily induced by the sun’s ultraviolet A (UVA) radiation, accounts for a significant portion (up to 80%) of skin aging. UVA rays penetrate deeply into the skin, causing damage such as reduced elasticity, loss of firmness, wrinkles, and…