Benzoyl peroxide. According to the requirements of the Food Safety Law, food additives refer to some synthetic or natural chemicals added to food in order to improve the quality, color, smell and taste of food and meet the needs of preservation, preservation and processing technology. Common preservatives, colorants, nutritional fortifiers, flavors and fragrances, alkaline substances in gum sugar, processing AIDS used in food industry, etc. all belong to the category of food additives. The varieties that are not allowed to be used in the National Food Safety Standard (GB2760) and National Health Commission Announcement are not allowed to be used as food additives, such as Sudan red and melamine.