Easy to use. According to the information on Zhihu.com, Ankeli Polypeptide Repair Biofiber Youth Mask is a medical skin care product that has been recognized by dermatologists as a skin care product that does not contain any pigments, fragrances, allergenic preservatives and other added ingredients. So it's easy to use. It is a medical skin care brand owned by the listed pharmaceutical company Anke Biotechnology. It is developed with great concentration by the global FGF growth factor genetic engineering drug R&D team led by Professor Li Xiaokun, chief scientist of the National Genetic Engineering Drug Engineering Center.