Our Acanthosis Nigricans Therapy Oil contains niacinamide, allantoin, glycerin. It can address the appearance of damaged skin caused by acanthosis nigricans, promoting skin exfoliation and cell renewal, help reduce the thickness and darkness of affected skin. Its application method is very simple: After bathing, wipe off the water stains, take an appropriate amount of this product and apply it evenly on the darkened skin area (neck, armpit, lips, knees, elbows, fingers, etc). Massage to assist absorption, use 2 times a day -3 times, you need to keep using it to get better results. Reduces dark spots, soothes irritated skin, moisturizes and hydrates, lightens discoloration.