Iron Oxides are great in cp & hp soap, and this one produces an earthy brick red color. They are also used commercially in Lip Sticks, Eye Shadows, Mascara etc...
Use this color to create beautiful natural tones for mineral makeup, add it to scented bath salts & bath bombs to give a hint of color or add a dash to your creams and lotions for a natural tint. Insoluble in water and oil.
Recommended use is approximately ¼ to ½ teaspoons per pound of cold processed soap, depending on the color you wish to obtain.