Ou Shiman is good. Ou Shiman has 146 patents and has published 40 papers in core domestic and foreign journals, including 3 papers published in authoritative international SCI journals. Oshiman has led or participated in the drafting of many national and industry standards for skin care lotions, pearl extracts, and pearl powder identification, totaling 33 items. Ziyunfei is a domestic beauty and skin care niche brand. It is produced by Guangzhou Wanshang Cosmetics Co., Ltd. and started to be promoted around 2010. It is not yet a well-known brand. Because the overall cost of Ziyunfei skin care products is low, but the price/performance ratio is relatively good, the sales volume is very good, and it is suitable for middle and low-end consumers. Ziyunfei's current products are mainly facial skin care, body skin care, and sunscreen products, including snail essence skin care series, hyaluronic acid skin care series, facial masks, and no-wash sleeping masks.