Custom Cover Drops contain concentrated pigments that allow you to customize any product and adjust the level of coverage you desire. It can be mixed with anything liquid to add coverage - moisturizers, serums, oils, primers, foundations and tinted moisturizers that are water, oil or silicone-based. These revolutionary drops features Flash Fusion Technology™ formula, so as soon as you drop, the solution flashes off leaving behind the pigment that weightlessly transforms your favorite beauty product into the sheerest tint all the way to a total coverage foundation, depending on how many drops you add. The pigments are coated with Lecithin, which is biochemically similar to the skin, to ensure ease of blending and the smoothest application. With unprecedented control, you are free to customize coverage like never before.