GHK CU 50mg Vial Copper Peptide Pure Bio Labs Amazon.com: GHK Cu Copper Peptide Powder 99.7%+ Pure Cosmetic Grade Ingredient for DIY Serums, Creams & Scalp Tonics Supports Collagen & Fuller Hair (1g) : Beauty & Personal Care Advanced GHK Cu Neck & Face Serum Premium Quality GHK Cu Peptide Foundry Premium Research Peptides Not all Copper Peptides are created equal If you've tried copper peptides before and saw no change, here is why: Concentration and Stability. Most serums use a diluted solution that barely scratches