GlyNAC

Refilled glutathione in older men is the one result that's held up.

Also called Glycine and N-acetylcysteine, Glycine + NAC, Gly-NAC, Glycine/N-acetylcysteine

The item

Three squares: proven in human trials. Two: a strong signal. One: early human data. Striped: the trials disagree.

Emergency: call 911.

I am not a doctor. This is not medical advice. This is self-education. Talk to a physician who has your history before you change anything.