Acetyl Tetrapeptide-2 is widely used in cosmetics, skin care products, and hair care products. It can enhance the skin's sensitivity, promote the skin's immune defense mechanism and the regeneration of epidermal cells, thereby strengthening the skin's protective barrier. At the same time, Acetyl Tetrapeptide-2 can also promote the repair and regeneration process of skin and hair. In addition, this ingredient also has significant anti-aging and anti-inflammatory properties, providing the skin with a lasting plumping and firming effect by replenishing collagen that gradually decreases with age.