mixing ghk cu with hyaluronic acid 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 Stimulates collagen production Promotes skin firmness Minimizes the look of fine lines Our Copper Peptides Firming Serum is designed to target overall skin elasticity and suppleness Let's mix my GHK-Cu Topical
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