Copper tripeptide CAS NO.:89030 95 5 GlpBio When a product says copper peptides it's worth checking the ingredient list. Copper peptides (like **Copper Tripeptide 1 GHK Cu**) are signaling ingredients that can support collagen processes in the skin. But not Not all copper peptide serums are formulated the same Before you buy one, make sure you're actually getting pure GHK Cu at the right concentration not just a diluted blend. We spent 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 GHK Cu Copper tripeptide (1% solution) Sapolita Wholesale GHK CU Copper Tripeptide 1 for your store Faire