Hi aimaali,
Welcome to healthcare Magic!
Glutathione is a tripeptide synthesized in liver. I acts as a natural antioxidant.
This molecule is very important for protecting against oxidative damage.
The pills will hardly give you any health improving boost, except that you will get a dietary supplement.
Your friend is getting married! Congratulations to him, he can take the glutathione but he must not expect any magic from this about the performance factor.
It is a very costly option of dietary supplements, for your a comparison an eggs value in body would equate the four glutathione pills. Cost matter you can compare!
Please get these investigations and if you like, inform me in a Fresh Query / Follow up Query for further fine tuned opinion
Wish you a great health!

Hi welcome to Healthcare magic forumGlutathione is a natural product prepared by liver in the body and also found in many fruits vegetables and meat. it is used extensively by many doctors for varied cases, like diabetis heart diseases, kidney diseases, neurological cases, memory loss, and to prevent aging.
Your friend is getting married shortly. dont worry he will not have any side effects, but still better if he won't use it because he will be using it for preventive purpose only so better not to use or post pone it. You had a doubt of its side effects though there are no effect you may feel it psychologically.
besides i advise you to follow some diet recomendations as green leafy vegetables , pulses, sprouts, meat, liver, milk, eggs, fruits and juices to supplement glutthione naturally. thank you for calling.