Copper tripeptide-1 is a small protein composed of the three amino acids glycine, histidine, and lysine combined with the physiologically beneficial mineral copper. Functioning as an anti-aging and as a hair growth stimulating ingredient, increases keratinocyte proliferation and facilitates the synthesis of collagen, a fundamental protein in skin’s structure. This dual action leads to an enhanced skin elasticity and a reduction of wrinkles, fortifying the protection for the skin's barrier function.