I tried It Works Fat Burners' as part of their skinny pack. As a loyal customer and user of the ultimate body applicator (which is AMAZING) I thought why not try the fat burners too. I was taking them for about a week and didn't feel right. I consulted my Dr. The product contains Garcinia Cambogia. And although they market it as a supplement it is in fact an item many people use for weight loss. I was informed to stop taking it! I didn't have a weight problem and never should have been on it was not helping my IBS. I recommend before starting any supplements to contact your Dr BEFORE taking any. I learned that the hard way.