Professional Cosmetics Peptide Supplier | GENOPEP
copper peptides for hair
GHK-Cu vs AHK-Cu: What Changes, What the Evidence Supports, and How Formulators Should Choose
GHK-Cu and AHK-Cu are related copper-bound tripeptides, but they are not interchangeable names for one ingredient. GHK-Cu contains glycine-histidine-lysine, whereas AHK-Cu contains alanine-histidine-lysine. GHK-Cu has the broader published record in skin and…