Ingredients Hairgenetix GHK Cu, AHK Cu & PDRN Peptides GHK Cu The miracle hair growth peptide is coming RFK announced: Peptides like GHK Cu (injectable) are moving categories FDA removing them from restrictive list for regulated compounding access. No more black market. GHK Cu (Copper Peptide) has emerged as one of the most promising regenerative peptides for hair restoration due to its ability to stimulate follicular activity, improve scalp circulation, reduce inflammation, and prolong the GHK Cu vs AHK Cu: Which Copper Peptide Is More Effective?