ActiTide® CP (Hydrochloride) is a product with the appearance of a blue-to-purple powder. It is a complex of glycyl histidine tripeptide (GHK) and copper. Its aqueous solution is blue. It tightens loose skin and improves skin elasticity, clarity, density, and firmness. Additionally, it reduces light damage and pigmentation, diminishes fine lines and deep wrinkles, and increases the proliferation of keratinocytes.