Yes there are studies on it. I and others who have tried it can personally vouch for it too. 20+mg per day in the mornings works great. Many supplements are ve

Yes there are studies on it. I and others who have tried it can personally vouch for it too. 20+mg per day in the mornings works great. Many supplements are very powerful, you just have to find trustworthy sources. A lot of the hype in advertising relates to muscle building and weight loss. Even then there are supplements that help with those goals, but you have to be more careful with the claims some companies make.