LIT SKIN PREP SERUM 1.0OZ. Benefits: Hydrating. Improves skin radiance. Enhances makeup application. Key Ingredients: Taurine: Taurine helps to enhance skin radiance, boost circulation, and reduce signs of fatigue such as puffiness or sallowness.. Hyaluronic Acid: Penetrates different layers of the skin, providing multi-depth hydration and improving skin elasticity.. Niacinamide: Makes the serum not only a superb hydrator and primer but also a potent skin brightener that minimizes pores and evens out skin tone.. Formulated Without: Parabens. Phthalates. Fragrance.