GHK Cu Peptide Regenerative & Cosmetic Research GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health 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 Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference