Got the dull skin blues? Perk up with Olay’s powerful Tone Perfecting Serum! We’ve harvested the power of super-nutrient Vitamin B3 (niacinamide) and Vitamin C to refresh your complexion. One single drop has the power to visibly renew one million skin cells. With daily use, you’ll see noticeably brighter skin on day 1 and more even skin tone in just two weeks. To use, apply several drops to clean skin and then seal in your treatment with your favorite Olay moisturizer. This fragrance-free serum absorbs quickly and cleanly without leaving skin feeling greasy. No parabens, phthalates, mineral oil, or synthetic dyes. So brighten up buttercup!