This is my third cycle on GHK Cu., My hair is growing. My nails are strong. My skin has improved. , And now Im focusing on those acne scars from my younger days., And honestly? Theyre starting to go Food Derived TripeptideCopper Self Healing Hydrogel for Infected Wound Healing Biomaterials Research Amazon.com: Copper Peptide Hair Serum with Copper Tripeptide 1 Dual Peptide Scalp Treatment plus Licorice Root Extract : Beauty & Personal Care Bounce Back Better with Peptides for Injury Recovery 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