Using this Gerard Cosmetics HydraMatte Liquid Lipstick is easy. First, make sure your lips are clean and dry. You can apply a thin layer of lip balm and then blot it off for a smoother base. Then, use the applicator to carefully apply the lipstick starting from the center of your lips and moving outwards. Let it dry for a few minutes to achieve the matte effect. You can wear it alone or add a layer of your favorite gloss on top. Remember, this is a final sale item, so choose your color wisely. To maintain the quality of the lipstick, keep it in a cool and dry place. Avoid exposing it to extreme temperatures. If you notice any change in texture or smell over time, it's best to stop using it.