Look at the ingredients of their products. Pure chitosan oligosaccharide will not gain weight after eating, but it will beautify and slim down. What I am eating now is chitosan oligosaccharide powder, which is cheap and has a good effect. At first it was one kilogram in 500 yuan, and now it is one kilogram in 800 yuan. After careful calculation, it is quite cost-effective. Let's go to the market to buy capsules. One capsule contains 0.3 g of chitosan oligosaccharide, and it costs more than 500 yuan to eat a bottle every few days. . . . . One kilogram of pure chitosan oligosaccharide raw powder can be eaten for more than one year,