7 days on GHK Cu. Here's my honest update. I'm not going to hype this up because the real results don't even start until week 46. But something is already happening. 7 days on GHK Cu. Here's my honest update. I'm not going to hype this up because the real results don't even start until week 46. But something is already happening. Smooth. Hydrated. Radiant. Our GHK Cu Copper Peptide Face Cream adds the perfect finishing touch to your glow ritual lightweight hydration that supports your skin's natural radiance. Save 20% with SKINHI BLUE01 Copper Peptide GHK CU 1.4% All Over Body Care Size 50ml Aytz Chayim Aromatherapy