Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Cu Peptide Therapy Brea, CA Orange County Defy GHK Cu (glycyl L histidyl L lysine) is a naturally occurring copper binding peptide found in human plasma. As levels decline with age, so may its support of the biological processes involved in collagen production, skin GHK Cu (Copper Peptide): A Smarter Way to Support Skin Regeneration Top Rated Scottsdale Med Spa Babyface GHK Cu vs NAD+: Which Longevity Peptide Should You Take or Stack?