Kryvaline Air Brush Inks are a waterproof makeup that are specially formulated to spray smoothly through an airbrush without clogging it. They can also be used to hand-paint onto the skin. They are pre-mixed, and and once applied to the skin, they dry within half a minute. Kryvaline Air Brush inks are long lasting and durable, if used correctly, they can last 4 to 6 days. How to use and remove: Clean the skin surface with alcohol before applying ink to ensure an ideal result. Shake your ink well, pour into your airbrush, or a container, and apply to the skin. Set the ink with baby powder. Use baby oil or alcohol to remove the inks.