To use this concealer, first make sure your face is clean and moisturized. Take a small amount of the concealer on your fingertip or a concealer brush. Gently apply it on the areas with pimples or uneven skin tone, like blemishes or dark spots. Blend it well for a natural look. Remember, keep it in a cool and dry place to maintain its quality. And don't forget to check the expiration date. It has a 3 - year shelf - life, but it's best to use it within a reasonable time after opening.