Vitamin C works best in the morning because it protects your skin from the UV and pollution damage that happens throughout the day

All ingredients: Water, Butylene Glycol, Caprylic/Capric Triglyceride, Beeswax, Niacinamide, Cetearyl Alcohol, Isononyl Isononanoate, Arachidyl Alcohol, 1,2-Hexanediol, Polyglyceryl-3 Methylglucose Distearate, Behenyl Alcohol, Glyceryl Stearate, Betaine, Arachidyl Glucoside, Cetearyl Olivate, Arginine, Carbomer, Sorbitan Olivate, Allantoin, Glycerin, Panthenol, Tocopherol, Xanthan Gum, Glutathione (600 ppm), Dipotassium Glyceryl Sulfate, Ethylhexylglycerin, Disodium EDTA, Sodium Hyaluronate, Glucose, Multiple Plant Extracts (Mallow, Melissa, Yarrow, Veronica, Peppermint, Evening Primrose), Ceramide NP, Hydrogenated Lecithin, Poly Glyceryl-10 stearate, sodium hydroxide, sodium ascorbyl phosphate, biotin, folic acid, pyridoxine, cyanocobalamin, linoleic acid, riboflavin, beta carotene, thiamine hydrochloride, copper tripeptide-1, acetyl hexapeptide-8, palmitoyl pentapeptide-4, palmitoyl tetrapeptide-7, palmitoyl tripeptide-1, perfume

It is stable enough to measure reliably, it reflects the downstream effect of the peptide, and a before-and-after pair tells you whether the protocol did something biological
Heat shock proteins (HSPs), molecular chaperones such as HSP60 and HSP70, are significantly upregulated in beta cells under oxidative stress and endoplasmic reticulum (ER) conditions [87, 88]