Using Maqpro Matte Liquid Watercolours is a breeze. First, make sure the area for face painting or artistic make - up is clean and dry. Then, simply squeeze a small amount of the watercolor onto a palette or directly onto your brush. Apply it gently to the skin as desired. When you're done with your masterpiece, you can remove the watercolor by washing the area with water or using a mild soap. As for maintenance, keep the bottle tightly closed after each use to prevent the watercolor from drying out. Store it in a cool, dry place away from direct sunlight. Also, since it's not tested on animals and paraben - free, you can use it with confidence, but if you have extremely sensitive skin, it's a good idea to do a patch test first.