How about Tongren Yangshengtang brand? Seek the answer of the actual insider, and don't want to see the same answer as the advertisement!
Very good, and the product is also very good. What soy isoflavones did my mother buy there before? I said that my physiological cycle is well adjusted now, and later I bought fish protein. At first, I didn't eat much. My skin really got better after eating a bottle. I bought three bottles. Now I eat it every day, and I use vitamin E from Tongren Yangshengtang as a mask at night. It's cheaper than the mask I bought 1.9 yuan for one day, but the effect is much better than that! It's cold here now, and the skin is quite smooth and tender after using it. My mother said it was an old brand (maybe she heard it from the clerk)