Benefit Cosmetics Brow Grooming Tweezer & Brush in Beauty: NA. Benefit Cosmetics Brow Grooming Tweezer & Brush in Beauty: NA. Benefit's Brow Grooming Tweezer & Brush is a beauty tool like no other. This tweezer does double-duty with an attached custom blended bristle brush that aids in brushing hairs upward to see where tweezing is necessary, then grooms brows into place when you're finished.. Slanted tip is coated with diamond dust to firmly grasp and pluck even the finest hairs. BCOS-WU27. AM03. Founded in 1976 by a sister duo of San Francisco beauty lovers, Benefit seeks to bring laughter and fun to the world of cosmetics. Guided by the mantra makeup doesn't have to be serious to look good, Benefit's iconic products boast breakthrough formulas in loud, playful packaging, inspiring women all over the world to apply more lipstick, grab life by the giggles, and fake it 'til you make it.