Brighten and hydrate your skin with OLAY Vitamin C + Peptide 24 Serum. Formulated with powerful ingredients like Vitamin C, Vitamin B, and Lactic Acid, this citrus-scented, lightweight serum visibly brightens and hydrates your skin. Use morning and night for a healthy, brightened glow. Dermatologist-tested and made without parabens, phthalates, synthetic dyes, or mineral oil.