GHK Cu Spray (Coppper Peptide) 100mg Limitless Biotech GHK Cu Peptide: What It Does for Body Composition and Metabolic Health 9 months of consistency with a protocol that works systemically, not superficially. This has included GHK Cu subcutaneous and topical, collagen, protein and an intentional lifestyle ticking off the essentials of sleep, training, Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with GHK CU 50 mg LIVV Zephrigen cocktail is a physician formulated peptide injection combining BPC 157, TB 500 and GHK Cu to accelerate healing, reduce inflammation and promote radiant skin. This all in one blend promotes healthier skin by