Are you still practicing real medicine?

Medicine is like a religion. Some follow it strictly, some don't. Some just using it for money. Just about two weeks ago, my wife asked me whether this trending therapy using gluthatione, a therapy to make your skin whiter. I have to say that I am still practicing medicine in a real way. It's not my expertise but I am not pretty sure what Gluthathione is good for? My encounter with this Gluthathione thing was when I read my text book on liver disease. Well those who lack of this enzyme will be more prone to get liver toxicity due to paracetamol poisoning. Something like that. And obviously if you read on physiology an biochemistry, you will encounter with this thing. It's a essential substances in our body. Ammonium is also essential in our cell metabolism but do we drink ammonium for health reason? That would be crazy. A lot of substances in our body are actually toxic but due to their micro amount, we manage to utilized them perfectly. Nature was a beauty. This