Currently, there is no medical method that can permanently change skin color. Skin color is mainly determined by the amount of melanin in the skin, and the synthesis of melanin is affected by a variety of factors, including genetics, environment, and health status. Although there are some ways to change skin color to a certain extent, such as using whitening products, chemical peels, and even laser treatments, these methods are usually temporary and may cause side effects or health risks. In addition, any medical method that attempts to change skin color needs to undergo rigorous clinical verification and supervision to ensure safety and effectiveness. If you are considering changing your skin color, it is recommended to consult a professional doctor or dermatologist to discuss safe and healthy options. At the same time, it is worth thinking that the diversity of skin color should be respected and tolerated, and should not become a standard of social preference.