Sungboon Editor Active Marine Astaxanthin Toning Serum Mask is a high-concentration sheet mask designed to visibly brighten, hydrate, and revitalize the skin while targeting uneven tone and dullness with powerful marine antioxidants. Infused with Astaxanthin derived from marine sources, this serum mask helps protect the skin from oxidative stress and supports a healthier, more radiant complexion, while Sea Buckthorn Fruit Extract and Sea Buckthorn Fruit Oil deliver antioxidant-rich nourishment and vitality. Niacinamide and Tranexamic Acid work together to improve skin tone clarity and reduce the appearance of dark spots, promoting a more even and luminous look. Deep hydration and soothing benefits come from Glycerin, Trehalose, Panthenol, Allantoin, and Glyceryl Glucoside, helping to replenish moisture and calm stressed skin. The formula is further supported by Gluconolactone for gentle skin refinement, Adenosine for smoother-looking texture, and Bisabolol and Glutathione to enhance comfort and radiance. Designed for use 2–3 times a week, this serum-infused mask adheres comfortably to the skin, delivering intensive toning and hydration care, leaving the complexion refreshed, supple, and visibly glowing after each use.