Matte Cobalt Blue Oxide Pigment PowderMica Cobalt Blue Oxide Pigment Powder, formerly known as ultramarine blue, is a pure pigment powder renowned for its application as a colorant in cold process soap making activities. As a major pigmenting powder in soap formulations, it imparts a bright, natural, and brilliant blue color. This pigment powder is versatile, allowing you to add color to various products, ranging from matte light pastel blue (matte baby blue color) to a very deep, matte,