PSA] Albeit rare Copper peptide "uglies" are real and scary. Case report and looking for advices : r SkincareAddiction A GHK Cu face serum appears blue because the active ingredient, GHK Cu (copper peptide), is naturally a blue colored powder, meaning its inherent color transfers to the serum when mixed in; this blue hue 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 (Copper Peptide), Your skins secret weapon for repair, regeneration, and glow , Meet GHK Cu (Copper Peptide) one of the most powerful peptides in aesthetics and wellness., Stimulates 7% GHK Cu Accelerant Neurogan Health, GHK Cu Copper Peptide, Hair & Scalp Serum