Acetyl Tetrapeptide-5  is a synthetic peptide composed of four amino acids with an acetyl modification, widely used in cosmetic formulations for anti-aging, eye contour treatment, and skin rejuvenation. Its structure enhances stability and allows better penetration into the skin, making it effective in targeted applications.
This peptide primarily works by reducing water retention and puffiness, especially around the eyes, and by stimulating microcirculation. It also helps inhibit glycation—a process that damages collagen and elastin—thereby improving skin firmness, elasticity, and reducing the appearance of fine lines and wrinkles.
 
Applications: Used in anti-aging, skin-firming, and eye contour cosmetic formulations such as serums, creams, and lotions. It helps reduce under-eye puffiness and dark circles, improve skin elasticity and firmness, inhibit glycation, and reduce fine lines and wrinkles.
Appearance:  White to off-white powder
Solubility:  Water-soluble;
pH Range: Typically stable in formulations with pH 4.0 – 7.0
Chemical Formula: C₂₄H₄₂N₈O₆
Cas. No: 868844-74-0