1, first of all, the effect, foot patch is not a medicine, it can't cure diseases, its main function is similar to foot massage, it acts on the body by stimulating acupoints and reflex zones of the foot, it belongs to physiotherapy products, and it has a certain effect on regulating endocrine.
2. In addition, foot stickers can't be judged only by black or not. Many counterfeiters take advantage of this. Everyone likes to make a fuss about superficial phenomena, so we must be careful to distinguish them.
3. Finally, it is suggested to choose regular, cheap and not greedy.