2. Guyuan ointment, not Ejiao cake, is made of yellow gelatin, pigskin glue, black sesame seeds and walnuts. It is said that it is a medicated diet that Cixi likes 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.