GHK Cu is the compound your body made at 25 and quietly stopped making. Most people find it in overpriced serums. Few understand what it actually does, or what happens when you're not GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective? Wellness peptide craze: why people are injecting drugs 'not for human consumption' New Biotinylated GHK and Related Copper(II) Complex: Antioxidant and Antiglycant Properties In Vitro against Neurodegenerative Disorders LINK IN BIO GHK Cu is a powerful copper peptide studied for its potential to support skin rejuvenation, wound healing, hair growth, and inflammation regulation, promoting overall skin, cell, and tissue vitality.