COSMEDIX Simply Brilliant serum unveils a more radiant complexion. Formulated with ten skin-specific brightening ingredients, the serum diminishes the look of discoloration and dullness. Lactic and salicylic acids gently exfoliate, refining texture and improving penetration of the brightening ingredients. The formula also aids in protecting skin from environmental stressors and preventing future sunlight-induced pigmentation. The result is a brighter, more even-toned appearance.