The cost of retail small packages is quite high. Polly, first of all, a well-known brand will increase a lot of marketing and related advertising expenses. Small retailers get less goods and sell at higher prices, so they earn more prices, which is equivalent to large supermarkets and shopping malls, with more goods and lower prices, but they have a certain scale and need artificial space, and so on. Manufacturing technology and raw materials also include a lot of expenses. Workers are raw materials with a certain cost, rich in vitamins A, B 1, B2 and vitamin C, and their high quality and high protein are comparable to those of soybeans. The content of dietary fiber, minerals, EPA and taurine is also very rich, and it is the best among all algae. Seaweed is an ideal food to achieve nutritional balance. So the ex-factory price is also very high.