This mask enriched with Glutathione helps offer dark spot care & create crystal-clear skin. Helps improve dull tone yellow tone & red tone. Formulated with Glutathione Niacinamide & Vitamin C to help offer brightening effect. Infused with ultra-low-molecular 300 Da Collagen that penetrates deep into pores to help enhance skin elasticity & radiance. Features a 1mm non-slipping film & allows seamless absorption of active ingredients. Sensitive skin irritation test completed.