Hyaluronic acid 2% + b5 is a water-based formula that combines low, medium and high molecular weight hyaluronic acid molecules and a next-generation ha cross-polymer to support hydration in multiple layers of your skin. It also focuses on the appearance of wrinkles and irregularities in texture. In addition, it uses provitamin b5 to improve hydration in the outer layers, resulting in smoother and smoother skin.