Which glutathione supplement is the best?

Acetylvs.Lypospheric: Regular glutathione is poorly absorbed. Lypospheric and acetyl-l-glutathione are the best choices. I haven't seen any studies that say which of those is best. Lypospheric is a gel with an unpleasant taste and odor while Acetyl comes as capsules. I don't know which brand is best but both are available from reliable companies. See http://naturedoc.com/glp/lypo-spheric-gsh.html for more information.