1.Basic information: Name: Tetrapeptide-16 Cas No: Formula: Molecular: Source: Grade: cosmetic 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.Description:This Tetrapeptide-16 inhibit ultraviolet light (UV)-induced expression of the pro-inflammatory cytokine interleukin-6 (IL-6) by skin epithelial cells and fibroblasts. Furthermore, the tetrapeptides repress the upregulation of matrix metalloproteinase-1 (MMP-1) by skin fibroblasts induced by either direct exposure to UV rays or treatment with media conditioned by UV-treated keratinocytes. The small size and bio-activity of the tetrapeptides render them suitable for use in therapies directed to inflammatory skin disorders and as active ingredients in skin care products.