Different patients have different body types and respond differently to different treatments, so there is generally no fastest and most effective method. Usually, you can remove melanin from your neck through whitening injections, laser treatments, medications and so on. 1. Skin whitening injection: mainly injecting certain nutrients (such as vitamin C, glutathione, tranexamic acid, etc.) into the skin to promote the metabolism and dissolution of melanin particles in the skin, which can effectively improve the neck melanin deposition. 2. Laser treatment: when the neck melanosis is more obvious, patients can also be removed by laser surgery, mainly through the photothermal effect on the deeper layers of the skin, crushing melanin particles, so that melanin particles are metabolized and discharged, so as to achieve the purpose of the melanin to subside. 3. medication: you can also take vitamin C tablets and local application of vitamin E milk to play the effect of whitening the skin. It is recommended that patients who want to remove melanin from their necks go to a regular hospital, follow the doctor’s instructions to choose the appropriate treatment, and usually strengthen sun protection to avoid further melanin deposition.