Whitening Source Derm-Brightener is a whitening formula specially designed to address skin tone issues caused by exposure to UV rays, helping to redefine the skin's crystal clarity. This formula can also help with spots reduction by providing additional nourishment to the skin. Whitening Source Derm-Brightener contains the advanced DMT Blocker, a combination of Vitamin C, Pitera® and Niacinamide. DMT Blocker helps to restore the skin's natural radiance by sweeping away dullness and preventing the formation of new spots .