Hello, I also use this to lose weight, and it feels good. My friend recommended me to buy it in official website. I advise you not to buy it on TV. Authentic products are valid. Just don't buy fake ones. Official website is cash on delivery, so my reputation will be better. I bought it for a month and didn't want 300 yuan. Hehe, I'm still using it, looking forward to better results.
I hope I can help you ~