GHK CU 50mg OP Labs (Formerly Oxford Peptides) All About GHK Cu Peptide More Than Just Cosmetic Blue Copper Peptide Serum GHK Cu for All Skin Types Firms Skin, Shrinks Pores, Boosts Collagen for Youthful Appearance GHK Cu Scalp Solution Empower Pharmacy GHK Cu 100mg Peptide 99.97% Pure & Verified UK Dispatch The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds,