Request your FREE Rael Microcrystal Dark Spot Cover. When a pimple is gone but leaves a mark, the Microcrystal Dark Spot Cover promotes a clearer-looking complexion through targeted treatment using microneedle technology that delivers skin-brightening ingredients deep below the surface. Niacinamide, Tranexamic Acid, and Broccoli Extract combine forces in this pimple patch to lighten dark spots and even out skin tone while keeping skin moisturized.