I tried to find it for you but I came up empty. I did find that you are supposed to take it twice a day. Usually these kinds of products can take about two weeks to get in full effect. The ratings on this are not great but seldom are these kinds of products. I would say it's not bad though. I am curious to know if it works for you. Let me know if and when you feel it later. Also, here's a blog review site for Macapure so you can see what others say and add some stuff too.