After lip tattoo lips blackened may be the oxidation of the color pigment formed on the surface of the lips, tattooing caused by bruising on the surface of the lips, or inflammation after the occurrence of color deposition. Oxidation: Because there is no uniform standardized lip tattoo material on the market, many chemical pigments containing heavy metals will be added to the lip tattoo supplies, when these materials come into contact with the lips, after the oxidation reaction will lead to black pigments and darkening, so the appearance of the lips will also appear black. Usually after oxidation, it is difficult to return to the original normal color, and need to use laser to restore. Lip bruising: when the tattoo is used too much strength, there will be bruising on the lip surface or around the mouth, which will produce the symptom of localized blackening, this symptom will generally subside after 1~2 days. In addition, if the lip tattoo only found after the scab, may be due to the tattoo produced after the inflammation of the color deposits, usually in 1 ~ 3 months disappear on their own, can be applied locally to fade the black products or scar repair cream to help repair. After tattooing lips black lips recommended timely to the hospital, follow the doctor’s instructions for treatment.