Halal Certification

Is it better to take Glutathione on an empty stomach or with a meal ?

It is highly recommended that Glutathione is consumed before a meal to optimize absorption. 

If you are able to take Glutathione with Vitamin C would increase the absorption rate of L-glutathione.

Is there any side effects from long term use of Glutathione ?

Glutathione is a food supplements and generally safe for consumption as a diet supplement.

There are no known side effects or interactions known with oral administration of Glutathione even in its prolonged use.