Amazon.com: Copper Peptide Hair Serum with Copper Tripeptide 1 Dual Peptide Scalp Treatment plus Licorice Root Extract : Beauty & Personal Care Peptide Labz Copper Peptide Hair Growth Serum, 10% GHK cu, 5% AHK cu, Rejuvenates Follicles Walmart.com This compound has been studied for over 50 years., Most people discovered it last year on social media., , In 1973, Dr. Loren Pickart identified GHK Cu, while studying why young blood could restore GHK Cu Copper Peptide Shampoo Anti Hair Loss Shampoo Promotes New Peptide Labz The Science and Benefits of GHK Cu Peptide: Skincare, Hair Growth, and Beyond