1, nine-way water flying method: it is a popular powder making process in the prosperous Tang Dynasty. With the help of water, after nine processes of filtration, pure and delicate micro-powder is obtained. On the basis of retaining the ancient technology and supplemented by the modern patent preparation technology (China invention patent, patent number: ZL20 12 10383729.2), it was found that the mud extract extracted by Jiutong water flying method can be suspended in water, and at the same time it has adsorption cleaning power and smooth skin feeling. Yu Mud Workshop applied it to the ace product amino acid mud essence mask, selected natural Yili hydromica, and reproduced the water flying method in the prosperous Tang Dynasty with modern technology to make mud essence that can be suspended in water, containing 15 amino acid, which has the effects of cleaning pores and not hurting skin.
2. 20% discount and 10% discount method: it is a paste-making process from the prosperous Tang Dynasty, which means that the raw materials are repeatedly evaporated, decocted and concentrated for many times, and the activity of ingredients is added to obtain the essence of ingredients with high concentration and high activity. The research of Royal Nifang found that ginsenoside Rg3, a natural anti-inflammatory and repairing component of "Black Ginseng" prepared by the eight-fan-nine method, will be increased several times, and after concentration, it has anti-oxidation and repairing ability. Yu Nifang and the Cosmetics Research Center of Jiangnan University, based on the classical ancient methods, developed eight kinds of nine-series facial mask creams to repair dry sensitive muscles.
3. Brewing and fermentation method: it is a popular wine-making process in the prosperous Tang Dynasty, which means that on the basis of traditional primary fermentation, secondary fermentation is adopted to finally obtain the fermentation stock solution which is easily absorbed by small molecules. The ancient method of Royal Nifang has been used to this day. On the basis of retaining the ancient method, supplemented by liquid submerged fermentation, ganoderma lucidum fermentation liquid was extracted, which has the functions of replenishing water, antioxidation and whitening. Yu Nifang and China Academy of Agricultural Sciences jointly developed and applied Ganoderma lucidum fermentation broth, which was applied to drinking vitality hydrating mask and Ganoderma lucidum dew repairing essence sleep mask. Has the characteristics of good absorption and multiple functions, and can improve different skin problems.