What it is: A potent, visibly brightening serum that reduces the appearance of dark spots with five forms of vitamin C, guava, and tranexamic and ferulic acids for visibly glowing, even-toned skin. Skin Type: Normal, Dry, Combination, and Oily Skincare Concerns: Dark Spots, Dullness, and Loss of Firmness and Elasticity Formulation: Lightweight Serum