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$ 29.23 Min. order: 1 piece ★★★★★ 4.4 (30 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 ★★★★★ 4.3 (112 reviews) Sold : Login>>
The mechanism of action of N-acetylcysteine (NAC): The emerging role of H2S and sulfane sulfur species US$ 21.39 Min. order: 1 piece ★★★★★ 4.2 (46 reviews) Sold : Login>>
GHK-Cu Copper Peptide – Anti-Aging Skincare Tri-Peptide – Bulk Naturals US$ 27.70 Min. order: 1 piece ★★★★★ 4.1 (11 reviews) Sold : Login>>
Copper Peptides: GHK-Cu is your skin's built-in botox – Fatskn US$ 29.92 Min. order: 1 piece ★★★★★ 4.7 (208 reviews) Sold : Login>>
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 ★★★★★ 4.3 (236 reviews) Sold : Login>>