Classification Price Brand category High Tech/Science Full Ingredient List Water, Copper Tripeptide-1 (Ghk-Cu), Glycerin, Phenoxyethanol, Hydroxyethyl Cellulose, Polysorbate 20, Glycine, Butylene Glycol, Allantoin, Polysorbate 80, Aloe Barbadensis (Aloe Vera) Powder, Vitamin E Tpgs (Tocophersolan), Fragrance Water, Copper Tripeptide-1 (Ghk-Cu), Glycerin, Phenoxyethanol, Hydroxyethyl Cellulose, Polysorbate 20, Glycine, Butylene Glycol, Allantoin, Polysorbate 80, Aloe Barbadensis (Aloe Vera) Powder, Vitamin E Tpgs (Tocophersolan), Fragrance Read More Hide About the brand They say: "Skin Biology's products are based on formulas used in human studies that determined their safety and rejuvenating actions in terms of the resultant look and beauty of skin and hair." Disclaimer The information provided here is based on public brand-provided information and based on commonly known practices and formulation guidelines in the cosmetic industry

Rather than starting at 500mcg, consider beginning at 200-250mcg for the first week
Dipeptidyl peptidase-4 inhibitor Inhibitors of dipeptidyl peptidase 4 ( DPP-4 inhibitors or gliptins ) are a class of oral hypoglycemics that block the enzyme dipeptidyl peptidase-4 (DPP-4)
They help your brain work better and make you feel good
Reduced Need for Professional Treatments: Effective at-home use of copper peptides may reduce the frequency of expensive in-office procedures or professional treatments