Melanin deposits on lips can be treated by avoiding sun exposure, dietary adjustments or through surgical methods, or you can go to the hospital for treatment according to the doctor’s advice. 1. Avoid the sun: usually pay attention to avoid the sun as much as possible, daily go out and do a good job of sunscreen, avoid direct sunlight, can alleviate melanin. 2. Dietary adjustments: usually can eat more food rich in vitamin C, such as fresh vegetables and fruits, apples, bananas, broccoli, etc., avoid staying up late, you can also take vitamin C or vitamin E, etc., which is conducive to the body’s absorption and alleviate the precipitation of melanin. 3. Surgical treatment: you can also use carbon dioxide laser peeling treatment or fruit acid peeling removal, you can also use photorejuvenation, Q-switch laser crushing pigmentation method for removal. If you have melanin deposits on your lips, you can go to the hospital to find out the cause and then remove it according to the doctor’s advice.