Neurogan Health, Copper Peptide GHK CU, 120 mcg, 60 Tablets iHerb How long will a 50 mg supply of GHKCu last when dosing 2 mg daily for five consecutive days followed by two days off each week? For a GHKCu (coppercomplexed glycylhistidyllysine) solution prepared at 1 mg mL, how many insulinsyringe units (1 unit = 0.01 mL) should be drawn for a specific dose? GHK Cu Peptide Copper Peptide Research Beyond Peptides GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution GHK Cu Dosage Calculator and Chart A Z Guide