OLAY's Regenerist MAX Hydration Serum, formulated with 2x the hyaluronic acid*. This lightweight serum penetrates the surface of your skin for long-lasting hydration and a healthy glow. Crafted with max concentration of Skin-Energizing Complex with Vitamin B3+, this non-greasy formula absorbs quickly. Apply a generous amount in an even layer to your face day and night before your moisturizer, and experience dewy hydration all day long. Made without fragrance, parabens, phthalates, mineral oil, or synthetic dyes.