Experience intense hydration and a youthful glow with Olay Regenerist Hydration Serum Max. This powerful serum is packed with hyaluronic acid and vitamin B3 to hydrate and nourish your skin. The lightweight formula absorbs quickly into the skin to leave it feeling soft and smooth. With regular use, you'll notice an improvement in skin texture and tone, and a reduction in the appearance of fine lines and wrinkles.