Mighty Fine Waterproof Brow Pen, #4

Benefit’s Mighty Fine Waterproof Brow Pen #4 is a precision brow pen designed for natural, hair-like strokes. The ultra-fine tip and ink-like formula glide smoothly for defined arches with a long-wearing, waterproof finish. Ideal for those with sparse brows seeking precise filling and a natural look; lightweight and good for on-the-go touch-ups.