To use this lip liner, first make sure your lips are clean and dry. You can start by outlining your lips with the liner, following your natural lip shape or creating a more defined look. Fill in your lips with the liner if you want an all - over color effect. When it comes to removing the lip liner, use a gentle makeup remover. It's waterproof, so you may need to hold the remover - soaked cotton pad on your lips for a few seconds. Store it in a cool and dry place to keep it in good condition. Avoid exposing it to extreme heat or cold, as this could affect its consistency. Also, don't share your lip liner to prevent the spread of germs.