Active Serum Pure Hyaluronic Acid 2% This formulation combines low, medium, and high molecular weight hyaluronic acid at a combined concentration of 2%, for multi-layer hydration in an oil-free formula. FEATURES Suitable for all skin types Vegan-friendly Paraffinum free Paraben free Nickel tested HOW TO USE Apply a few drops of the product to the face in the morning and evening before creams.