GHK Cu Injections in Napa & Sonoma Credit Union in West Palm Beach FL iTHINK Financial Palm Beach County Convention Center Governor's Hurricane Conference 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 GHK Cu Injections in Napa & Sonoma Could this peptide replace Botox? , Not exactly, but it is changing the future of aesthetics., GHK Cu is a regenerative copper peptide that works at the skin level to stimulate collagen, improve