Locations and Hours Gold Coast Federal Credit Union Peptide GHK CU Cream Concierge MD 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 The Park West Palm is golf's newest hanga Gil Hanse designed course open to the public Golf Courses Golf Digest GHK Cu (10 mg, 50 mg, 100 mg) COA verified peptide Nootropix