Acetyl Tetrapeptide-3

Acetyl Tetrapeptide-3 is a specialized cosmetic bioactive peptide designed for advanced hair and scalp care applications. Composed of four amino acids (Lys-Asp-Val-Tyr) with an acetyl group at the N-terminus, this signal peptide has a molecular weight of 495.52 g/mol. Acetyl Tetrapeptide-3 works by stimulating the synthesis of extracellular matrix (ECM) proteins, particularly laminin and type III collagen, in the dermal papilla. This mechanism strengthens the hair follicle anchor within the scalp, extends the anagen (growth) phase of the hair cycle, and promotes thicker, denser, and healthier hair growth.