I'm not the only one who has used it. Ha ha. My sister also recommended this to me. I can't. I've been drinking for more than half a year, and I've lost a lot of weight by exercising and dieting every day. I am very grateful to my sister. You can go to official website to find out before you buy it. Don't blindly listen to others. Be sure to know in detail yourself and choose the best one that suits you.