There is a little bit of effect, I have used, a month lost 6 pounds, and did not find anything uncomfortable, but I heard that this product is not qualified or how, I do not quite understand, we are rarely sold here, however, a lot of people say that there is no effect, or unqualified products, but at the moment I do not feel that there are any bad side effects, it may be that it varies from person to person. Weight loss products do not have a very good effect, the so-called effect is very good will hurt the body, I do slimming so contact a lot of weight loss products, it is recommended that the owner of the best not to buy those products that are too obvious effect will make the body's water drop rapidly.