Using this lip glaze is easy. First, make sure your lips are clean and dry. Then, apply the lip glaze evenly on your lips with the applicator. You can add an extra layer for a more intense color. When it comes to maintenance, keep it in a cool and dry place, away from direct sunlight. And remember, although it's waterproof, it's best to avoid excessive rubbing on your lips. Also, if you have any skin sensitivities, it's a good idea to do a patch test first.