GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia Caregen Expands U.S. Retail Presence Through Partnership with 2San Caregen has partnered with U.S. healthcare distribution company 2San to expand its peptide based wellness products across the U.S. consumer retail market. Beginning Neurogan Health Copper Peptide GHK CU , 120 mcg, 60 Tablets, 0.52 oz (15 g) eBay GHK Cu is a naturally occurring copper binding peptide that plays a major role in tissue repair and remodeling, with a strong focus in research on skin and hair biology. It works by signaling Most people think skincare works at the surface level. But healthy skin function starts much deeper than a temporary glow. GHK Cu is a naturally occurring copper binding tripeptide that is already found