Hello, I have been using oral glutathione for over a year now. The first thing i have noitced was that i have way more energy . I also seem to get sick less often and when i do get sick it is less severe. There is a site you can take a look at that may be helpful............... http://members5.boardhost.com/CFGSH/ since glutathione has not been approved by the FDA it is not something your doctor can prescribe for you. you may also want to look at these sites for more info on glutathione as well to learn more about it. http://members.tripod.com/uvicf/research/glutathione.htm 'I get my glutathione from iherb.comI hope this info helps, if you want to email me for more info my email address is jinxnick@aol.com ~Diane 39/ cf /diabetes / b.cepacia