Acetyl Dipeptide-1 Cetyl ester is a lipopeptide, i.e., a molecule consisting of a lipid connected to a peptide. It is a lab-engineered peptide blend made with amino acids arginine and tyrosine and can be found in skincare, cosmetics, and make-up formulations. In skincare, Acetyl Dipeptide-1 Cetyl ester is primarily used to stimulate elastin production and to help prevent skin sagging by resisting gravity. It is famed as a relaxant that helps prevent the visible signs of aging with fine lines and wrinkles.