Using this MERZY eyebrow mascara is a breeze. First, start by brushing through your eyebrows with the included 15º skinny brush in the natural direction of hair growth to distribute the product evenly. Make sure to cover any sparse areas for a fuller look. For a more defined shape, go over the edges of your brows gently. When you're done applying, avoid touching your eyebrows for a few seconds to let the mascara set. As for storage, keep it in a cool, dry place away from direct sunlight. And remember, if you notice the mascara starting to dry out, it's time to replace it for the best results.