GHK Cu Hair & Scalp Serum 2400mg 4% Less Shedding Neurogan Neurogan Health Ghk cu and skin peptides (topical) Skin regeneration and wrinkle reduction Longevity Protocols 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 Copper Peptide Set Complete Hair Growth Treatment (Shampoo, Conditioner & Serum)