Ultraceuticals Ultra B² Hydrating Serum

This hydrating powerhouse features 3 forms of Hyaluronic Acid, HA-Macro, HA-Micro and the powerful AC-Hyal to hydrate skin more deeply and for longer. Two powerhouse Vitamin Bs give this serum its name: Niacinamide (B3) & Panthenol (Provitamin B5) together enhance skin texture and appearance