Copper Peptides for Skin: What GHK Cu Does and How It Compares to Retinol GHK Cu Youthful Skin, Healthy Cells, Vibrant You. GHK Cu Organic Serum Copper Peptide for Anti Aging & Skin Repair GHK Cu Raw Powder 1g (Topical Research Applications) Polaris Peptides Our combination of GHK CU Peptide Therapy + advanced laser skin treatments helps support collagen production, improve skin texture, reduce redness, and promote a healthier, more youthful appearance. At Icon MD, every treatment