OMO! Vitamin C Sheet Mask is the best way to take care of your skin easily with affordable price. With Niacinamide is very proven to brighten and whiten your skin. Niacinamide has many benefits for health and beauty such as minimizes fine lines, pore appearance and wrinkles. Regulates oil, build skin keratin, protecting from ultraviolet rays damage and treats acne. Yes! it is helpful for severe acne, especially inflammatory forms like papules and pustules. Over time, you may see fewer lesions and improved skin texture.