GHK Cu Copper Peptides: Topical vs Injectable GHK Cu Peptide Therapy Brea, CA Orange County GHK Cu Peptides: Unlocking the Copper Peptide Revolution in Skin Care This compound has been studied for over 50 years. Most people discovered it last year on social media. In 1973, Dr. Loren Pickart identified GHK Cu while studying why young blood could Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference