Miracle Boost Concentrate is an Advanced Tone Perfecting Serum BoosterDelivers 50% More Tone Active Ingredient When Paired with Olay Luminous Tone Perfecting CreamFace Serum Booster blends Olay's Most Potent Tone-Perfecting Ingredients and Vitamin C for Glowing SkinFades the Look of Dark Spots and Uneven Skin ToneLightly-Scented Formula with a Consistency and Feel of a Face Serum