Most people think GHK Cu works because it's a skin peptide. That's surface level thinking. #GHK Cu doesn't start with wrinkles, scars, or hairlines. It starts with cellular repair signalling. GHK Cu is a copper peptide GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect Ghk Cu Hair Serum Etsy GHK Cu Copper Tripeptide Hair Serum: DHT Blocker, Fuller Looking Hair Soon as 7 9 Weeks 1oz Etsy Neurogan Health Copper Peptide GHK CU, 120 mcg, 60 Tablets : Target 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