To use this 3CE lip tint, simply apply it directly to your lips. You can layer different colors to create your own unique look. For best results, start with a thin layer and build up the color as you like. Keep in mind that this product contains water, so avoid leaving it in extremely hot or cold environments. After use, make sure to close the cap tightly. If you have sensitive lips, it's a good idea to do a patch test first. To maintain the quality of the tint, store it in a cool and dry place.