Our acanthosis nigricans body serum contains shea butter and ascorbic acid. It is quickly absorbed, leaving skin bright and smooth. Its application is very simple: thoroughly clean and dry the skin, take the appropriate amount of this product evenly apply to the neck, ankles, joints, armpits, thighs! Dark skin parts, such as elbows, gently massage, promote the effect better. And can deeply nourish, improve dry, rough skin, make skin fine and smooth.