SkinCeuticals Advanced Brightening UV Defense Sunscreen is An ultra-lightweight, residue-free formula, Advanced Brightening UV Defense Sunscreen SPF 50 combines broad spectrum UV protection with a potent blend of discoloration-correcting ingredients for brighter, more even skin. 1% tranexamic acid and 2% niacinamide help reduce existing discoloration while broad spectrum UV filters help protect against future sun damage. Formulated with mica, this daily sunscreen instantly brightens skin tone.