Guyuan ointment, also called Ejiao cake, is said to be a medicated diet that Cixi liked very much in her later years. From the water sutra note: taste boiled glue at the age of 20 to pay tribute to Tianfu. It is also said that this recipe was created by Yang Guifei in the Tang Dynasty. Regular eating can nourish blood and moisturize the skin, and the hair is black. At present, most formulas of Guyuan ointment on the market are donkey-hide gelatin, red dates, black sesame seeds, walnut kernels, longan, rock sugar and yellow wine. Some recipes face the needs of different groups of people, and will add Lycium barbarum, Ziziphus jujuba seeds, honey, lotus seeds and so on. It is suitable for young and middle-aged women with deficiency of both qi and blood, the elderly in liver blood deficiency, and people with poor health. It should be noted that Guyuan ointment is rather greasy, and people with weak spleen and stomach should not take it for a long time.