Vitamin C Ester Brightening Serum - Perricone MD Vitamin C Ester Brightening Serum visibly brightens, smooths & soothes for even, radiant looking skin.Benefits91% agreed skin had a more even, luminous glow*91% agreed fine lines around the eyes looked smaller*91% agreed skin looked less dull & weathered*89% agreed lips were smoother*86% agreed uneven dark areas look brighter & more uniform*93% agreed clarity of skin improved*91% agreed texture & tone looked more even*Provides an instant boost of luminosity and glow*In a consumer study with 44 women after 28 daysPromotes a more evened skin tone with improved clarityDelivers a brighter, more radiant-looking complexion93% agreed skin looks brighter & more radiant*Key IngredientsVitamin C Ester: Supercharged Brightening & SmoothingResearch Results71% showed a significant improvement in skin brightness**91% showed a significant improvement in lines & wrinkles****Based on a clinical study with 34 women after 4 weeks - Vitamin C Ester Brightening Serum