Our Acanthosis Nigricans Removal Oil contains nicotinamide, allantoin and Jojoba seed oil. It can help dull skin gradually restore white, lighten dull skin, reduce skin dryness and melanin precipitation, promote the production of new cells, make the skin look more healthy and uniform. The method of use is very simple: dry after bathing, apply appropriate amount of this product evenly on the skin, wait for 3-30 minutes to let the dead skin naturally fall off, and finally wash the skin with clean water. Gently remove aging keratin, brightening and moisturizing skin, can effectively improve the condition of armpit and joint black.