The art of brow made easy. Designed with our precise angled skinny brush to style brow hairs, L'Oreal Paris presents the Brow Stylist Boost & Set. Our 1st brow gel mousse formula easily glides onto brows to boost volume and set for a natural to thicker brow makeup look. All day wear. Smudge- proof. Water- resistant. Ophthalmologist tested. Suitable for sensitive eyes and contact lens wearers. aging may vary. What you receive may not be what is reflected on site.