It's conservative enough to be comfortable for almost everyone, while still getting you to meaningful doses by weeks 6-8
The measurements were plotted as a function of time to obtain the OD-growth curve and the CFU/mL-growth curve
GHK-CU RAW $39.00 These products are sold exclusively for laboratory research use only
Apr 2012;15(4):693-701

Ingredients: Water, Dipropylene Glycol, Glycerin, Niacinamide, Methylpropanediol, Glyceryl Glucoside, Galactomyces, Glycereth-26, Erythritol, Polyglyceryl-10 Laurate, Hydroxyacetophenone, Panthenol, Caprylyl Glycol, Hydrolyzed Jojoba Esters, Ethylhexylglycerin, Adenosine, Carbomer, Glucose, Xanthan Gum, Arginine, 1,2-Hexanediol, Butylene Glycol, Citric Acid, Polyquaternium-51, Citrus Aurantium Bergamia (Bergamot) Fruit Oil, Diethylhexyl Sodium Sulfosuccinate, Pantolactone, Sodium Citrate, Lavandula Angustifolia (Lavender) Oil, Glutathione, Sodium Hyaluronate, Oryza Sativa (Rice) Extract, Ascorbic Acid, Pyrus Malus (Apple) Fruit Extract, Dipotassium Glycyrrhizate, Hydrogenated Lecithin, Gluconolactone, Brassica Oleracea Italica (Broccoli) Extract, Prunus Serrulata Flower Extract , Nelumbo Nucifera Flower Extract, Lilium Tigrinum Extract, Copper Tripeptide-1, Hydrolyzed Hyaluronic Acid, Hyaluronic Acid, Sodium Hyaluronate Crosspolymer, Hydroxypropyltrimonium Hyaluronate, Potassium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Pentylene Glycol, Sodium Acetylated Hyaluronate, Disodium EDTA, Limonene, Linalool

Systemic human safety trials for injectable GHK-Cu are severely lacking, and the transition from topical cosmetic to systemic biologic introduces massive pharmacological variables