Discover the secret to beautifully defined lashes with Obagi Nu-Cil™ Eyelash Enhancing Serum. Powered by NouriPlex™ technology, a unique blend of four key ingredients, this serum nourishes lashes for a thicker, more luscious appearance. Clinically proven to enhance lash condition, thickness, volume, and density, it features Biotin to support keratin production for fuller lashes, Dehydrolantanoprost to target the lash growth phase for thicker, fuller-looking lashes, Sodium Hyaluronate to nourish and moisturize lashes for increased volume, and Panthenol to hydrate, enhance shine, and soften lashes.