1.Basic information: INCI Name: Tetrapeptide-21 MF: 389.4 Sequence: Purity: 95% Grade: cosmetic Additive: 2000 PPM Source: Formulation: available for your reference, please contact us. MSDS and COA: available for your reference, please contact us Delivery: promptly from stock Odor: characteristic Stability: stable Solubility: soluble in water Capacity: 800g per month Appearance: white powder 2.Functions: Tetrapeptide-21 is a new bioactive tetrapeptide with superior collagen boosting activity,it can minimizes the appearance of wrinkles and reduces skin roughness 3.Introduction: It is a peptide sequence based on skin's own structure. This preservative-free solution shows superior collagen, hyaluronic acid and fibronectin boosting activity. An in vivo facial study shows that Tetrapeptide-21 minimizes the appearance of all kinds of wrinkles.