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 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 Helloskin GHK Cu 1% Triple Peptide Regenerative Serum Advanced GHK Cu Face Cream 2400mg 4% Firmer Skin Neurogan Neurogan Health Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum