The Mary&May Niacinamide Vitamin C Brightening Mask is designed to enhance skin brightness and clarity by combining 2% Niacinamide and 1,000 ppm of Vitamin C, which helps balance sebum activity, reduce skin troubles, and suppress melanin production. It is certified by the EWG for its green-grade ingredients, is cruelty-free with eco-friendly packaging, and has passed skin irritation tests, ensuring safe and effective results for improving skin appearance.