The concern is supplemental dosing , not glutathione itself
After cleansing and misting or toning, apply 2 to 4 pumps all over your face, eye area, and neck
Higher concentration means lower units per dose (easier to dose small amounts precisely)
Organic Aloe Barbadensis Leaf Juice, Pentylene Glycol, Niacinamide, Hydrolyzed Hyaluronic Acid, GHK-cu (Copper Tripeptide-1), Vitamin B5, CITRUSTEM(Citrus Aurantium Dulcis/Orange Callus Culture Extract, Acetyl Hexapeptide-8, Allantoin, Palmitoyl Tripeptide-5, Palmitoyl Tetrapeptide-7, Centella Aisatica), Methylsulfonylmethane, Glycine, Zinc, Glutathione, Hydrolyzed Quinoa, Spirulina, Lysine, Disodium EDTA, Ethylhexylglycerin
Yang YS, Su YF, Yang HW, Lee YH, Chou JI, Ueng KC
You can also find their third party testing lab results to show purity and concentration is what is advertised on the nutrition label