The world of peptides can be confusing, but I will break it down simply! Here is GHK Cu, also known as copper peptides, which is used for skin rejuvenation, hair growth, wound healing, and cognitive Amazon.com: GHK Cu Copper Peptide Supplement, Anti aging and revitalizing skin, strengthening hair roots: Precision nutrition capsules improve skin elasticity and increase hair density, 90 vegan capsules. : Health & Household Buy GHK Cu Exceptional 99%+ Purity Third Party COA Included GHK Cu 1gram (Copper Peptide) (1000mg), Color : White, Purity : 100% at Rs 900 in Tiruchirappalli Buy GHK Basic Peptide (50mg) BiotechPeptides GHK Cu (75mg) Alpha BioMed