Introducing the Benefit Brow Microfilling Pen in Blonde! Get the coveted microbladed look without the commitment or pain. This easy-to-apply formula creates natural-looking brows by filling in gaps and mimicking natural brow hair with 3 ultra-fine lines in just one stroke. With a 24-hour* lasting effect and a 92% satisfaction rate**, this waterproof, smudge-proof and longwearing brow pen is a must-have for flawless brows. *Based on a consumer panel of 32 women after 1 week. **Based on a consumer panel of 101 women after 1 week.