GHK Cu (copper peptide) is a science backed anti aging compound that supports collagen production, skin regeneration, and overall skin health. Used in both topical serums and subcutaneous PDF] Copper Peptides in Acne Scars Semantic Scholar Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum Peptide Skincare Ghkcu TikTok GHK Cu is a regenerative peptide studied for its role in collagen support, tissue repair and inflammatory balance. As natural levels decline with age, interest in its broader biological impact continues to grow