As someone whos turning 40 in less than two weeks, ive been eager to trying out new skin care regimes and peptide therapies. So far, been loving ghkcu and snap 8. Gave More than hair its cellular support , GHK CU is a well studied copper peptide known for its role in supporting:, Healthier looking hair & scalp environment, Hair that appears thicker, GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective? GHK Cu, the copper peptide, is a game changing injectable for radiant skin and so much more Here's what it can do: Boost collagen for smoother, firmer skin Anti aging Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum