GHK Cu Copper Peptide Benefits, Uses & Safety Intra V 7% GHK CU ACCELERANT Platinum Skin Care Flawless skin at 50 (pretty dang close to it, anyway) And how do I retain this radiant glow? Copper Peptide GHK Cu: They are naturally found in the human body, have skin Organic Copper Peptide Serum Firming & Smoothing Lightly scented with essential oils GHKCu Copper Peptide Therapy Skin & Healing Regeneration