Simple Booster Serum delivers powerful hydration for thirsty skin. Infused with three percent hyaluronic acid and B5, this serum attracts and holds moisture. The concentrated formula visibly plumps skin, reducing the appearance of fine lines. Ideal for daily use, it works alone or mixes seamlessly into a favorite moisturizer. Suitable for sensitive skin, this serum leaves a complexion feeling soft, supple, and refreshed.