What it is: A water-resistant deep black liquid eyeliner that delivers great color opacity with a long-wearing finish. What it does: Its ultrafine brush tip delivers great precision and control. The eyeliner is water-resistant, smudge-resistant and transfer-resistant.Research results:In a consumer acceptance test on 50 people between ages 18-40 after one week of use:- 100% found the brush was ultrafine and precise- 92% found the brush was flexible and allowed for maximum control- 100% found the formula delivered an ultra-black color- 100% found the formula was feather-resistant- 100% found the formula was transfer-resistant- 100% found the product did not run- 98% found the product was smudge-resistant- 94% found the product lasted all dayHow to use: Shake well before use. Apply along your lashline, using light pressure for ultrafine lines. Store with the tip down for best performance. 0.01 oz. Paraben-free; sulfate-free; gluten-free Cruelty-free Vegan Made in the USA