To use this MERZY mellow lip tint, simply apply it directly to your lips. Start from the center and spread it outwards for an even application. You can build up the color for a more intense look. Keep it away from direct sunlight and high temperatures to maintain its quality. If you have sensitive lips, it's a good idea to do a patch test first. Also, make sure to close the cap tightly after each use to prevent it from drying out.