Gluthatione is it really works?

Tweet

I'm so curious about this medecine, Gluthatione that's what they called them. Here in the Philippines who are most Filipino have brown complexion are now crazy using this pill, they said it has a sideffect,like it whiten the skin, and I don't know if I will believe in that. I never yet try this product but the problem is is it really work? and what brand am I going to use.