Amazon.com: GHK-Cu Copper Peptide Powder – 99.7%+ Pure Cosmetic-Grade Ingredient for DIY Serums, Creams & Scalp Tonics US$ 24.79 Min. order: 1 piece ★★★★★ 4.6 (187 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$ 20.77 Min. order: 1 piece ★★★★★ 4.0 (155 reviews) Sold : Login>>
Amazon.com: Skin Perfection Copper Peptide Serum GHK-CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp US$ 21.34 Min. order: 1 piece ★★★★★ 4.2 (133 reviews) Sold : Login>>