Authentic thin bag official website Fang flagship store. Jansen Slim-Fit Bag was bought in the flagship store of authentic Jansen Slim-Fit Bag in official website. Yang Sen slimming bag is a Chinese medicine plaster. The Chinese medicinal bag is used for reducing weight, building body, slimming waist and shaping body. It is based on the principle of warm moxibustion in traditional Chinese medicine, combined with infrared hyperthermia, to promote body metabolism and achieve the effect of losing weight.