GHK Cu Copper Peptide Hair & Scalp Serum Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Topical GHK Cu: Skin Benefits, Best Forms, and Where to Buy Uses and Benefits #ghk GHK Cu is a naturally occurring peptide in human plasma that declines with age. When used in injections (usually subcutaneous), it can offer various benefits: Skin Rejuvenation and Anti Aging: GHK Cu and Reproductive Health: Mechanisms, Fertility Benefits Reveal your glow from the inside out! GHK Cu oral strips are your new go to for skin + hair rejuvenation! This copper peptide boosts collagen, smooths wrinkles, enhances elasticity, and promotes