Quench your hair's thirst with an instant boost of hydration. The L'Oréal Paris Elvive Hydra Hyaluronic Acid Serum is powered by a 2% Care Complex infused with hyaluronic acid, providing up to 72 hours of moisture.Engineered by world-leading haircare scientists, the plumping hair serum is suitable for all hair types, offering increased shape memory and long-lasting fragrance. Just like skincare for your hair, the serum leaves your locks feeling silky-smooth and nourished, while boasting a high shine finish.