Your copper peptide product should be this exact blue. If it isn't, you already have your answer. GHK-Cu is blue because of coordination chemistry, not dye. The Cu²⁺ ion at the center US$ 22.54 Min. order: 1 piece ★★★★★ 4.1 (132 reviews) Sold : Login>>
50mg GHK Cu Vial Blue Copper Peptide Face Serum Age-Aging Moisturizing Repairing for Skin Care Serum Facial Care Kit d US$ 27.44 Min. order: 1 piece ★★★★★ 4.6 (49 reviews) Sold : Login>>
💙 Do you know what this little blue injection is? It's called GHK-Cu — aka the Glow Peptide ✨ I've always believed in peptides for skincare, but honestly… I never thought about US$ 24.74 Min. order: 1 piece ★★★★★ 4.7 (17 reviews) Sold : Login>>
N-acetylcysteine (NAC): from Clinical to Anti-Aging US$ 20.52 Min. order: 1 piece ★★★★★ 4.7 (262 reviews) Sold : Login>>
GHK-Cu Peptide Benefits (And a Few Risks) Explained US$ 20.73 Min. order: 1 piece ★★★★★ 4.1 (56 reviews) Sold : Login>>
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 US$ 25.85 Min. order: 1 piece ★★★★★ 4.4 (34 reviews) Sold : Login>>