It is my understanding that glutathione is an antioxidant. If I am not mistaken our kids tend to lack this substance but I can't recall if it is because of the inablility to absorb due to leaky gut or it isn't properly metabolized from the compounds used to create glutathione within the body. It is supposed to help them to feel better while undergoing chelation. I am not sure if it is the glutathione or not but I missed one of my supplements the other day that contains glutathione and I felt awful. Began to feel better as soon as I began to take it again. This supplement also contains NAC and ALA, too. So I'm not sure what I was missing, just glad I got it back.