Using this 18 - color matte eyeshadow is a breeze. First, pick the shade you like based on your makeup look. Use an eyeshadow brush to gently apply the powder to your eyelids. For a more intense color, dip the brush into the shadow again. When you're done, store it in a cool, dry place to keep it fresh. Remember, avoid getting water into the eyeshadow palette as it can ruin the product. Also, if you have sensitive skin, it's a good idea to do a patch test on your wrist before using it on your eyes.