Side effects? It varies from person to person. My colleague who lost weight very well didn't respond, but was thirsty. Me, too. There is no response, but he is thirsty. But I have a colleague who bought it with me, so it won't work. She was flustered, dizzy, uncomfortable and too reactive to drink.
The price is also, official website 66, Taobao is only over 20, but I don't know whether it is true or not.
I got it cheaply because I belong to a pharmaceutical company and we have suppliers. 35 is genuine.