The study linked GHK-Cu to nerve regeneration and showed that it increased the proliferation of Schwann cells in damaged tissue [6]
One produces 8 percentage points more weight loss

Ingredients Water, Niacinamide, Sunflower Seed Oil, Glutathione (600mg), Peppermint Leaf Extract, Sulfate Primrose Extract, Yarrow Extract, Mallow Extract, Lemon Chestnut Extract, Speedwell Extract, Skyweed Root Extract, Indian Gooseberry Fruit Extract, Mulberry Bark Extract, Virginia Prunus Leaf Extract, Sodium Hyaluronate, Glyceryl Arachidonate, Glyceryl Linolinate, Panthenol, Tocopheryl Acetate, Sodium Ascorbyl Phosphate, Pyridoxine, Polyacid, Thiamine HCl, Cyanocobalamin, Biotin, Retinyl Palmitate, Acetylhexapeptide-8, Copper Tripeptide-1, Oligopeptide-29, Oligopeptide-32, Palmitoylpentapeptide-4, Cetearyl Olivate, Polyacrylamide, Sorbitan Oleate, 1-2-Hexanediol, Pasqueflower Extract, Cinnabar Fruit Extract, Russian Extract, C13-14 Isoparaffin, Fee, Carbomer, Triethanolamine, Glycerol, Laureth-7, Butylene Glycol, Ethylhexylglycerin, Hydrogenated Lecithin, Polyglyceryl-10 Stearate The manufacturer is responsible for the products ingredients

Impact of cocoa flavanol intake on age-dependent vascular stiffness in healthy men: a randomized, controlled, double-masked trial