Mascara is a cosmetic use to darken, thicken and define eyelashes. Mascara comes in three forms: liquid, cake, and cream. It also comes in many formulas, tints, and colours. The general purpose of mascara is to emphasise, thicken, lengthen, and define lashes. Mascara is available with tube and wand applicators. Ingredients in mascara include water, wax thickeners, film-formers, and preservatives. Mascara brushes can be straight or curved, to curl eye lashes, with fine or thick bristles. Some mascara wands contain rayon or nylon fibers to lengthen eyelashes.