Even though I’ve never overdone it with tweezers—not even as a teen—my brows still leave much to be desired when it comes to both fullness and arch. Lately, I’ve been relying on Pür Minerals Browder Perfecting Brow Powder ($22, ulta.com). Its long, pointy, sponge-tip applicator is perfect for filling in bare spots. I’m also excited about Westmore Beauty Lasting-Effects Brow Gel ($23, qvc.com), which contains hairlike fibers—similar to Fiberwig mascara. Yves Saint Laurent Couture Brow ($35, yslbeautyus.com), meanwhile, really seals those arches in place.