HEALTH & BEAUTY SHEET MASK RIVAJ Weight: 3PCS. RIVAJ CHARCOAL SHEET MASK 3PCS is a great way to detox and clear your skin. It uses charcoal to absorb toxins and impurities from the skin, leaving you with brighter, cleaner skin. The mask is also made of natural ingredients, so its safe for all types of skin. Our mask uses activated charcoal to absorb toxins and impurities from your skin while you sleep, leaving it feeling refreshed, clean and radiant. This mask also features moisturizing ingredients that leave your skin feeling soft and smooth.