AHK CU + GHK Cu Hair Serum Pro 4800mg Hair Growth Neurogan Copper Peptide Hair Growth Serum for Hair Loss & Thinning Hair Feline Skinscience GHK Cu Facial Serum Empower Pharmacy Hebe GHK for Hair Loss Just 3 Months In! GHK Cu is a game changer for hair restorationjust 3 months of treatment and the difference speaks for itself. Stimulates growth GHK Cu Copper Peptide Shampoo Anti Hair Loss Shampoo Promotes New Peptide Labz 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing. Alright, I need to give you an updateit's been 12 weeks since I started using GHK