Vitamin C Ester Brightening Serum - Perricone MD Vitamin C Ester Brightening Serum visibly brightens, smooths & soothes for even, radiant looking skin.Benefits86% agreed uneven dark areas look brighter & more uniform*89% agreed lips were smoother*91% agreed skin looked less dull & weathered*91% agreed fine lines around the eyes looked smaller*91% agreed skin had a more even, luminous glow*93% agreed skin looks brighter & more radiant*Delivers a brighter, more radiant-looking complexionPromotes a more evened skin tone with improved clarity*In a consumer study with 44 women after 28 daysProvides an instant boost of luminosity and glow91% agreed texture & tone looked more even*93% agreed clarity of skin improved*Key IngredientsVitamin C Ester: Supercharged Brightening & SmoothingResearch Results71% showed a significant improvement in skin brightness****Based on a clinical study with 34 women after 4 weeks91% showed a significant improvement in lines & wrinkles** - Vitamin C Ester Brightening Serum