Copper Peptides + Vitamin C and Retinol? Heres How to Layer Them! , GHK Cu works wonders for collagen production, but how do you pair it with other skincare powerhouses like Vitamin C or Retinol? GHK Cu Cream Kare Pharmacy Copper Peptides for Skin: What GHK Cu Does and How It Compares to Retinol I was super skeptical because I've literally tried everything Retinol destroyed my skin. Vitamin C oxidized and stung. Four different peptide serums and nothing actually worked. Then I tried GHK Cu. 6 weeks
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can you use ghk cu with retinol Copper Peptide Regenerating Serum for Glowing Skin and Hair