What It Is: A two-in-one moisturizer and highlighter that boosts the look of dull skin and illuminates with iridescent particles. What It Does: Discover the runway-inspired Strobe formula that started it all as MAC's ultimate quick fix for skin. This versatile illuminating moisturizer comes available in shades that replicate daylight to candlelight, and can be worn alone, under foundation or as a highlighter that works all over. It provides all-day moisture and iridescence for luminous, healthy-looking skin. This best-selling formula includes hyaluronic acid to increase hydration, plus a barrier-boosting blend featuring ceramides and iridescent crystal pearls to amplify radiance without glitter or shimmer. Key Claims and Benefits: 2-in-1 Moisturizer + Highlighter Improves clarity Moisturizes skin all day Boosts luminosity all day Strengthens skin's barrier Iridescent Crystal Pearls amplify radiance Does not cause acne Dermatologist-tested 100% had improvement in moisture immediately* 96% had improvement in radiance immediately* How to Use: Apply directly to skin with fingertips or a 109S Brush (sold separately) For more intensity, add Strobe Cream on top of foundation Apply under foundation for a subtler glow Mix into foundation for a natural glow Try using multiple shades for a strobe ombre effect *Clinical testing 25 panelists after one use **Packaging may differ from image shown