7% GHK Cu Cosmetic Ingredient Accelerant Skin Biology 15 ml GHK Cu is not Botox. It does not freeze a single muscle. It works because it works at the matrix level. GHK Cu stimulates collagen and glycosaminoglycan synthesis, modulates the matrix metalloproteinases that govern Wholesale GHK Cu Copper Peptide Powder 99% Pure Anti Wrinkle Cosmetic Raw Material for Skin Care Products GHK Cu Copper Peptide Face Cream Anti Aging & Firming