GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution DAILY SPOTLIGHT GHK Cu 200mg from Peptide Partners. GHK Cu is the copper tripeptide biohackers reach for when skin, scalp, and wound repair all need a single upstream signal. Endogenous in healthy human GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health GHK Copper Peptide GHK Cu Tripeptide 1 GHK Cu Peptide Copper Peptide Research Beyond Peptides