Best Gel Cream: Been afraid to try gel creams? Don’t worry – MAC’s waterproof gel looks surprisingly natural. Even in a torrential downpour, it’ll keep your brows in tip-top shape. A little goes a long way, though, since the formula is thick. Use the Shu Uemura brush for optimal control over the color – the angle and stiffness of the brush will help you fill in brows to your satisfaction. At MAC for $16.