Black Opal Oil Absorbing Invisible Oil Absorbing Powder. This colorless pressed powder is formulated with unique oil blotters that help control shine and offer a matte finish without leaving a powdery residue or drying skin out. Light-weight formula, with unique oil blotters to control shine breakthrough. Leaves skin looking completely matte without a powdery residue. Invisible powder is color-free to blend perfectly with every skin tone. Wont dry out skin or alter the shade of your foundation. Can be worn alone or over foundation.