The NHS notes that taking up to 2,000 micrograms daily is unlikely to cause harm in most people, though there is generally no benefit to such excessive amounts without confirmed deficiency

Is studied as a mosquito repellent Water, Dipropylene glycol, Glycerin, Butylene glycol, Niacinamide, 1,2-hexanediol, Polyglyceryl-10 laurate, Polyglyceryl-4 laurate, Betaine, Allantoin, Carbomer, Trehalose, Arginine, Caprylyl/capryl glucoside, Glutathione, Dipotassium glycyrrhizate, Ethylhexylglycerin, Xanthan gum, Parfum, Glyceryl acrylate/acrylic acid copolymer, Disodium edta, Sodium hyaluronate, Gluconolactone, Alcohol, Malva sylvestris extract, Melissa officinalis leaf extract, Alchemilla vulgaris extract, Achillea millefolium extract, Veronica officinalis extract, Mentha piperita leaf extract, Hydrogenated lecithin, Primula veris extract, Polyglyceryl-10 stearate, Panthenol, Lycopodium clavatum extract, Sodium ascorbyl phosphate, Equisetum arvense extract, Sodium hydroxide, Copper tripeptide-1, Biotin, Acetyl hexapeptide-8, Palmitoyl pentapeptide-4, Folic acid, Pyridoxine, Palmitoyl tetrapeptide-7, Palmitoyl tripeptide-1, Cyanocobalamin, Tocopherol, Linoleic acid, Riboflavin, Beta-carotene, Thiamine hcl

Due to the consumption of agricultural pesticides and GMO foods, we cannot provide the benefit of supporting glutathione synthesis
The researchers noted it is crucial in the removal and detoxification of carcinogens thanks to its antioxidant effects (12)
Affinity purification was not necessary for the cyanobacterial antibody as it recognized only a single band in our species