What It Is: A two-in-one moisturizer and highlighter that boosts the look of dull skin and illuminates with iridescent particles in a miniature on-the-go size. 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 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: Mini on-the-go size 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 *Clinical testing 25 panelists after one use