PERFECT STROKES UNIVERSAL MASCARA BLACK. Benefits: Designed to give every lash type (fine/sparse, full/thick, straight, and curly) more lift, length, curl, and volume. Easy-to-build formula is not too wet or too dry. Unique curvy brush features a combination of long bristles to create length and short bristles to add volume. Together, the two bristle lengths hold the perfect amount of formula for buildable, weightless volume. Ultra-black, water-resistant formula lasts all day without flaking or smudging. Clump-resistant. Dermatologist tested and suitable for sensitive skin. Ophthalmologist tested, suitable for sensitive eyes and for contact lens wearers. Research Results: 100% said the brush captures and coats each and every lash from root to tip**. 100% of all lash types had more length & volume*. 95% of all lash types had more lift*. 93% said it separates and defines lashes without clumping**. 92% said it creates longer-looking lashes that last all day**. 92% of all lash types had more curl*. *In an independent instrumental study of 120 subjects **In an independent consumer study of 58 subjects. Key Ingredients: Castor Oil: Conditions, softens, and nourishes lashes.