Cosmetics contain a certain amount of moisture, and there is a carbon source and nitrogen source for microbial growth reproduction, most of which are neutral, micro-alkali or microalic acid, which provides a good condition for microbial growth. In cosmetics, the effect of disinfection is to protect the product, so that it is protected from microbial contamination, extending the shelf life of the product; ensuring the safety of the product, preventing consumers from being able to infection due to the use of microbial contaminated products.