Boost lashes with the By Terry Terrybly Waterproof Mascara; an advanced, next generation ‘top coat’ treatment to deliver an impenetrable waterproof veil for long lasting results.The gel-based formula delivers clump-free definition and volume, with silicone resins and ‘Flex Stretch’ polymers ensuring extreme water resistance including against heat and humidity. Individual lashes appear more defined and lengthened, with superior volume and curl. Use alone or transform regular mascaras into a waterproof version.