An incomplete whitelist of pearl powder companies. The first one: Zhejiang Changshengniao Pharmaceutical (No. 80, Xishi Street, Zhuji City, Zhejiang Province) Brand: Fenix ??Main products: Physical nano-pearl powder (capsules and powders are said not to be sold in China) Main features: No. 1 in the world A company that produces nano pearl powder through purely physical methods. The average fineness is 40~80 nanometers. It is a high-tech product of Zhejiang Province. Passed GMP certification. After trial, the effect is indeed extraordinary. Some users commented: It is indeed the best pearl powder I have ever seen. The price is relatively expensive, with 72 capsules in a portable pack, and the mail-order price is 95 yuan with free shipping. It is a bit painful, but it definitely reassures people about the quality. Relevant information: This company is a new company founded by a doctor. Judging from the information disclosed on their official website, they indeed pay great attention to all aspects of management, and they have a bit of compassion for revitalizing the industry. However, the sales network is not fully rolled out, but mail order services are available. The second company: Shanghai No. 1 Traditional Chinese Medicine Factory Brands: Shangyao, Leiyunshang Main products: many. In terms of pearl powder, there are mainly ultrafine pearl powder, ordinary pearl powder and instant pearl powder. Main features: Ordinary pearl powder is estimated to be about 200 mesh stipulated in the pharmacopoeia. It is said that 98% of the ultra-fine powder has a particle size <10 microns; instant pearl powder is a general distributor and is produced by a factory in Changzhou. In terms of packaging, it is relatively Low grade. Related information: Lei Yunshang Pharmaceutical was founded in the first year of Kangxi. It is a century-old store and is now a member of Shanghai Pharmaceutical Group. It is naturally strong. Its pearl powder is a traditional product that has been selling well in Shanghai for decades and is trusted by Shanghai people. It is also very expensive. The retail price of ultra-fine pearl powder should be more than 5 yuan per 1 gram. It seems that except for Shanghai, it is rare in other places, but maybe pearl powder is a medicated pediatric product, and the old appearance has never changed. There have been some bad rumors recently. But overall, you can buy it. A typical comment from Shanghainese is: "Apart from Shangyao brand, I don't know any other brands." The third one: Tong Ren Tang Brand: Tong Ren Tang Main products: Too many to explain clearly. Main features: No introduction. Relevant information: Founded in 1669, China's first well-known trademark, annual sales of 4 billion yuan, with two domestic and overseas listed companies, more than 347 branches (branch companies) at home and abroad, and 27 dosage forms The production lines have passed the national GMP certification, and 9 production lines have passed the Australian GMP certification. I don’t see pearl powder in its product list on its official website, but its pearl powder is indeed sold in Beijing. Netizens also commented, which made the author a little confused. However, based on Tong Ren Tang's traditional adage that "no matter how complicated the preparation is, we should not save labor, and no matter how expensive the taste is, we should not save material resources" and the self-discipline of "no one can see the harmony, but God knows the intention", Tong Ren Tang's products should be trustworthy. Fourth: Zhuji Jianmei Pearl Powder Factory Brand: Jingmei Main Products: Pearl Powder, Shuifei Superfine Pearl Powder Main Features: It is one of the earliest pearl powder manufacturers in Zhuji City. It was once quite brilliant and produced pearl toothpaste and pearl milk. Sugar etc. The materials used are relatively pure and the product quality is good. However, the available information does not indicate that the company has passed GMP certification, otherwise it should be three-star. Some Qingqingcao netizens reported that they feel good after taking it for a long time. Fifth company: Zhejiang Yuecui Industrial Company Longzhu Medicine and Health Products Branch Brand: Yuecui Main products: Pearl powder products Main features: Passed GMP certification and is an enterprise with a long history. But there is nothing special about technology, and some products are acceptable. It is said to be one of the suppliers of pearl powder for a famous health product. No other comments will be made.