Copper Peptide Hair Growth Serum (10% GHK Cu + 5% AHK Cu) 30ml ROBYN'S TACK ROOM GHK Cu Peptide Before and After Results superPeptide 1% GHK Copper Peptide Serum Pure & Cimple 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, Thermodynamically stable ionic liquid microemulsions pioneer pathways for topical delivery and peptide application ScienceDirect