It's an essential part of my makeup routine. I love this gray because it gives a natural shading to my cool undertones. It also adds depth to eyeshadow. It prevents eyeliner from smudging and doubles as an eyeshadow base, so I always apply it first. It's difficult to apply by hand, so I recommend using MAC's Duo Fiber Eyeshadow Brush for a light application, which gives it a great look.