Using Kryolan Pure Pigments is easy. First, take a makeup primer and apply it to the area where you want to use the pigments, like your eyelids. This helps the pigments stick better and last longer. Then, use an appropriate makeup brush to pick up a small amount of the pigment and gently apply it to the desired area. For a more intense look, you can apply multiple layers. As for storage, keep the pigments in a cool, dry place away from direct sunlight. Also, make sure to close the container tightly after use to prevent the pigments from drying out or getting contaminated. If you have sensitive skin, it's a good idea to do a patch test on a small area of your skin before using the pigments all over your face.