1, look for the approval number of health food: Now many products play a marginal role in promoting health care functions with ordinary food, but they are not supervised by the state administrative department.

2. Check the functional components of the product: Many products take lutein as a gimmick, and the actual content is very small and has no effect.

3. Choose products that have been on the market for a long time: these products have been verified by the market and consumers, and their quality and after-sales are relatively guaranteed.