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 FDA Peptide Reclassification 2026: What It Means for Providers This is one of the biggest peptide regulatory shifts in years. And it's just getting started. The FDA has taken its first step toward reversing its 2023 stance, removing 12 peptides from GHK Cu Peptides Serum TryDeloura