It works. The organic cotton pad bought at Pinduo can be used without trademark, and the products without trademark can also be used, but I'm not sure if they are genuine. Proteins generally refer to sanitary napkins. Sanitary napkins are sanitary products used by women during menstruation. The main material is polymer and polymer composite paper made of cotton, non-woven fabric, paper pulp or the above materials. The design of the side edge is mainly used to prevent side leakage, and it is divided into three layers from inside to outside: surface layer, absorbent core and bottom layer.