Product Information: Skin damage leads to collagen degradation, producing a series of bioactive short peptide fragments that stimulate extracellular matrix regeneration and promote skin repair. Hexapeptide-9 is a hexapeptide composed of NH2-Gly-Pro-Gln-Gly-Pro-Gln-OH, a fragment of the intracellular domain of type XVII collagen. Type XVII collagen is a transmembrane protein and a core component of the dermal-epidermal junction. Studies have shown that hexapeptide-9 can promote the production of type I and IV collagen, integrins, laminin, and keratin, promote the regeneration of key components in the epidermis, dermal-epidermal junction, and dermis, promote skin repair, and improve skin damage and signs of aging.