The specific method of "Motherwort Ze Mianfang" is to collect motherwort with full roots and seedlings on the fifth day of the fifth lunar month every year, and the collected motherwort cannot bring any soil. Sun-drying the collected motherwort, pulverizing, sieving, adding proper amount of flour and water, concocting into eggs-sized pills, sun-drying, and then using yellow mud as a stove with small holes on both sides, putting charcoal fire on the upper and lower layers of the stove, putting pills between the two layers, and igniting and firing. After a big fire, simmer for 24 hours, and you can't put out the fire halfway. The final refined pills should be white and delicate in color. Pills are usually ready to be taken out, then thoroughly cooled, put into a porcelain bowl, ground with a jade hammer (or a staghorn hammer), ground again, and so on, the finer the powder, the better. Then mix jade powder or cornu Cervi powder into the medicine, then put the medicine in a porcelain bottle and seal it, and then take it out when using it. The preparation of this pill is very particular, including the time of receiving the medicine, the color of the medicine, the temperature during the pharmaceutical process and so on. If it is not done well, the pill will turn black and yellow, and it will lose its efficacy. At first, you will feel that your hands are smooth and your face is shiny. Later, you will gradually become rosy. If you use this medicine for many years, a woman in her forties and fifties will look as young as a woman in her fifties. Wu Zetian can still maintain a beautiful face when she is 80 years old, which seems to be related to her frequent use of this beauty secret recipe. Another beauty prescription was prescribed by physician Zhang Wenzhong to Wu Zetian, which is called applying facial fat frequently. As a beauty product, facial cream was very popular in the Tang Dynasty, which is equivalent to our facial mask today. Different from today, the mask at that time was made of natural medicinal materials. The main ingredients of this prescription are asarum, yam, astragalus, Typhonium Typhonium, Flos Magnoliae, Rhizoma Chuanxiong, Radix Angelicae Dahuricae, Fructus Trichosanthis, Indigoferae Cortex and lard. The preparation method is also very complicated. The medicine should be chopped, then soaked in wine overnight, then fried, and then slowly solidified into facial fat. Rhizoma Dioscoreae Septemlobae, Fructus Trichosanthis and lard have the effects of nourishing yin and moistening skin; Asari, Rhizoma Typhonii, and Flos Magnoliae dispel wind and dredge orifices; Astragalus can benefit qi; Chuanxiong and Indigofera bark can promote blood circulation and moisturize skin. Therefore, this mask can make the skin smooth, wrinkle-free and moisturize after use, and the curative effect is still remarkable.