GHK Cu Peptide (50mg) Advanced Skin Rejuvenation & Healing Support Copper Peptide Hair Before After TikTok GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack? 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 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