Define and maintain your brows in just one step: L'Oréal Paris' transparent Volumizing Brow Mascara Serum allows for naturally defined eyebrows that look more defined and beautiful with each application. The lightweight, long-lasting gel formula, enriched with valuable ingredients, intensely nourishes the brows, is water- and smudge-proof, does not flake, and does not clump. The precision brush with fine, short bristles creates a professional finish and allows for effortless application. With just one stroke of the brush, the eyebrows are cared for, defined, and set in place.