In the center of An Baili (opposite Xianghe Home, near Mei Chuan Road Pedestrian Street, Metro, B&Q and Decathlon Sports Monopoly), I remember there are 947 buses. You can also go to 105, but ask clearly, don't make a mistake, take 706 to the terminal and walk a little ...)
There is a Century Lianhua Supermarket in Li Bailian, Central, which seems to be a basement. Find the checkout counter of Lianhua by yourself. There are several places over there where you can buy medicine supplements. There seems to be a counter in Lei Yun, where I bought it. 45 yuan. The fourth generation accelerated edition. I think it should be authentic. This is a big supermarket ... and the medicines there are anti-counterfeiting. I tried. It's true. Don't worry.
But I still want to talk to you about its side effects. The side effects are very serious. I usually have a good heart and good constitution. My heart beat very fast after eating the fourth generation! 120/ min, scared me to death. Even if I sit still, I can feel my heart beating fast. For example, if you lie in bed and then get up and sit up, your heart will suddenly accelerate, and you can feel it yourself. It's terrible. This phenomenon started on the third day after I ate it. A few days ago, it was ok, nothing, no appetite. I didn't dare to eat yesterday or today, but my heart is still beating fast. If you want to eat, remember to drink more water, the more the better, until you can't drink any more. Don't gain weight at will because of the effect!
I hope you can succeed!