letco glutathione Glutathione-L-reduced powder distributed by Medical Tylenol and glutathione, actually explained...here's

Jahn, D., Rau, M., Hermanns, H

approach it with appropriate caution

Purified water, Glycerin, Butylene glycol, Niacinamide, Caprylic/capric triglyceride, Cetyl ethylhexanoate, Polyglyceryl-3 methyl glucose distearate, 1,2-hexanediol, Shea butter, Sorbitan sesquioleate, Vinyl dimethicone, Cetearyl alcohol, Ammonium acryloyldimethyl taurate/VP copolymer, Cetearyl olivate, Sorbitan olivate, Xanthan gum, Hydroxyacetophenone, Glutathione (1,000 ppm), Ethylhexylglycerin, Caprylyl glycol, Adenosine, Disodium EDTA, Panthenol, Silica, Sodium hyaluronate, Centella asiatica extract

An IV puts them back fast, because it goes straight into your bloodstream instead of waiting on your stomach to catch up