My friend Andy Hnilo uses GHK copper peptides in his Alitura skin care line, which helped him recover with almost no scarring from a horrific car accident that broke his jaw in five GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care GHK Cu, a copper peptide, is a naturally occurring peptide made of three amino acids bound to copper that improves collagen production, wound healing, inflammation, and tissue repair. GHK Cu helps with: Know your peptides. Shop SKINNEY Pharm.