Clearing Solution Ultra-Fine Microfiber Sheet Mask is a no-rinse facial sheet mask for acne-prone skin. The sheet mask is soaked in a clearing/brightening solution that combines niacinamide, vitamin C, glutathione, tree tree oil, salicylic acid, and other skin conditioners. The mask feels silky and cool on the skin, and stays put during treatment. Once the mask is removed, the clearing solution quickly absorbs into the skin with just a hint of tackiness. The mask leaves the skin hydrated and glowing, but is less effective in reducing blemishes.