Using this fiber eye black is easy. First, hold it steadily and apply it gently along your eye area as you would with normal eye makeup. For the best result, make sure your eye area is clean and dry before application. When it comes to maintenance, keep it in a cool and dry place. Avoid exposing it to direct sunlight or high - humidity areas. Also, be careful not to drop it as it might damage the product. If you have any eye sensitivities, it's a good idea to do a small patch test on your skin first.