Dark spots. Sun spots. Age spots. Acne marks. The future looks bright: this ultra-lightweight, ultra-hydrating serum reveals a more even-toned, radiant look. With its exclusive complex of brightening actives, including potent 98.8% naturally derived Ferments plus Vitamin C, it helps BREAK the cycle of dullness, helps BLOCK the appearance of future dark spots with powerful anti-oxidants and helps BOOST an undeniable clarity and inner light. After 1 week: 87% of women said their skin looked brighter with renewed clarity.* 85% said their skin looked more even-toned.* See a significant reduction in the look of: - Dark spots - Sun spots - Age spots - Acne marks For all ethnicities and skin tones. Inspired by professional treatments, it rapidly brightens the look of skin, and targets the appearance of multiple types of spots and uneven skin tone. Anti-oxidants help protect against environmental damage and the formation of new skin discolorations. The fast-absorbing formula of the Rapid Brightening Treatment helps smooth skin\'s texture and enhance the natural radiance of your glowing skin. With anti-irritants and a super-dose of Hyaluronic Acid, this Ferment² + Vitamin C serum infuses skin with plumping, soothing, long-lasting moisture - delivers 48h hydration. Oil-free. Gentle on all skin types. WHAT IS FERMENT²? It\'s a powerful double-ferment combining a high concentration of our exclusive Yeast Ferment with a spot-targeting Molasses Ferment. Both ferments work to help reduce the appearance of dark spots and improve clarity for glowing skin. Estée Lauder scientists are experts in fermentation, a process that concentrates and amplifies an ingredient. WHAT IS VITAMIN C? It\'s a renowned brightening, anti-ageing and all-around skin-boosting active. In this Ferment² + Vitamin C serum, it targets dark spots in the deepest layer of skin\'s surface to help reduce the look of skin discolorations. And with its anti-oxidant properties, it helps prevent the appearance of new spots and skin discolorations. * Consumer test on 280 women.