Tetrapeptide-7 is a synthetic peptide with a sequence consisting of four amino acids: glycine, glutamine, proline, and arginine. It functions as a signal peptide—a class of peptides that open protein channels and stimulate skin fibrosis, resulting in increased collagen product and skin elasticity. Tetrapeptide-7 stimulates cell regeneration and production, reverses photodamage, and reduces inflammation and glycation. Visible effects of using Tetrapeptide-7 include the reduction of wrinkles, fine lines, and skin roughness. It also targets rosacea and evens skin tone. Tetrapeptide-7 also stabilizes products and enhances the effects of other active ingredients.
 
 
Usage
1 to 2%, add in the cool-down phase.