1. Xinxin app: This app is a certified beauty trading platform. This app integrates a large number of beauty products for research, combing and comparative testing. We have our own means to identify cosmetics, and constantly cultivate the level of appraisers in order to provide better services. 2. Check the makeup app: This app is currently the third leading beauty appraisal platform. This app has a professional appraiser, who can compare and identify the authenticity according to the beautiful pictures provided by users, compare the information in the database, and integrate according to the opinions of many people in the appraisal team, thus giving a professional and comprehensive answer, which is very convenient and fast. 3. Zhihu app: This app can provide beauty authentication, anti-counterfeiting batch number query and other services. The appraisers in the software are experienced and can distinguish the authenticity of cosmetics according to the picture information provided by users, give various suggestions and opinions, and issue effective authenticity appraisal certificates. It is a very authoritative appraisal app and is worth recommending.