The low-priced products of Shanghai Yangshengtang on Taobao are all counterfeit products. You will know that a bottle of vitamin E is the only product. Do you think it's normal to be so cheap? Bottle packaging around 3 yuan. What is the value of the remaining products? Where are their profits? In fact, they are all made of waste oil processing industry gelatin, because the real product cost is probably 18 yuan, and the profit of the merchants is at least around 30 yuan.