Using this lipstick is easy. Just apply it directly to your lips for a beautiful and long - lasting color. When applying, start from the center of your lips and spread it outwards for an even look. Since it's waterproof, it can withstand light kisses without smudging. However, remember not to leave it in direct sunlight or high - temperature areas as this may affect its quality. To keep it in good condition, always close the cap tightly after use. If you have any skin sensitivities, it's advisable to do a patch test on your wrist first.