What It Is: 16-hour long-wearing brow mousse tints, tames, fills-in even the sparsest brows. Mini applicator brushes on natural-looking color that resists sweat and humidity. Water-resistant, too. Great To Know: Paraben Free. Phthalate Free. Fragrance-Free. Allergy Tested. Ophthalmologist tested. How To Use: Using short, tiny strokes and a light hand, brush mousse over brow hairs following the natural arch. Use the tip of the wand to fill in sparse areas or to extend the ends of each brow.