who statement glutathione injections skin whitening How Often Can You Get IV Treatment? Glutathione IV for Liver Detox:

The transsulfuration pathway, which is closely linked to the folate-methionine cycle, involves conversion of Hcy to cystathionine and ultimately to cysteine in two vitamin B6 dependent reactions catalyzed by cystathionine-beta-synthase and cystathionase (CBS), respectively [6]

In short, glutathione has shown benefit among cystic fibrosis and AIDS patients who have decreased glutathione in the intestine, and it may show benefit in inflammatory conditions of the intestine, such as ulcerative colitis and Crohns disease, but this needs to be studied as well

The product is supplied as 99.9% pure lyophilized (freeze-dried) powder

You have to read the label carefully in order to ensure that you are getting a natural whey protein powder