Precision of a liquid with the ease of a gel based formula. Apply with a brush, we like a super fine, firm and synthetic angled brush. Dip tip of the brush, coat both sides – be careful not to pick up too much product! Work quickly, as the formula becomes transfer resistant once it dries. Do NOT leave opened for long periods of time or it will dry out and you will be sad. Be sure to close the lid tightly after each use.