The price is about 100 yuan. At present, the most effective whitening method is to inject whitening needle, also called whitening injection, in which glutathione is a tripeptide composed of glutamic acid, cysteine and glycine. Glutathione not only has a powerful detoxification function, but also has the function of inhibiting free radicals, which can effectively prevent oxidation of the body and slow down skin aging. When substances beneficial to the human body enter the human body through drops, they react at the cellular level of the body, which can not only effectively prevent the formation of melanin, but also reduce the melanin that has been formed, making the skin white from the inside out, even if it is used for a long time, it will not have any toxic or side effects.