CeraVe Hydrating Hyaluronic Acid Serum is a dermatologist-developed facial serum that provides up to 24 hours of hydration. Formulated with hyaluronic acid, three essential ceramides, and vitamin B5, this serum helps replenish moisture, restore the skin barrier, and deliver instantly smoother, softer skin. The serum features MVE Delivery Technology for continuous release of moisturizing ingredients throughout the day. It is suitable for all skin types and can be used alone or layered under moisturizer. The non-comedogenic, fragrance-free formula is gentle enough for daily use. For best results, apply evenly to face and neck, avoiding the eye area. Clinical studies show 90% of users experienced intense hydration immediately, while 98% reported smoother skin after 4 weeks of use.