Colorescience mineral makeup is created with several ingredients. With the right combinations, Colorescience creates a product that is best for your skin protecting you against the harmful ultraviolet rays and from signs of aging. Colorescience mineral makeup is just right for those of you will allergies and skin sensitivity. There are many ingredients in the makeup and reasons why each of the ingredients are used. Bismuth Oxychloride is considered to be an anti-inflammatory and oil absorbing for the oily skin types. It is a bismuth sub carbonate and is used as a skin protective. This ingredient is natural and derived from the earth's crust. Iron oxide comes in reds, browns, yellows, black, and orange. These are natural oxides of iron combined with oxygen creating the color. With the right amount of iron oxide is what creates the colors in the Colorescience makeup. Manganese violet is also used in cosmetic coloring and is safe on the skin and around the eyes. Micronized Titanium Dioxide is the key ingredient Colorescience makeup has determined will protect your skin from the dangerous ultraviolet rays. This ingredient provides the greatest amount of coverage and tinting powder of white pigments and has no known toxicities. Zinc Oxide is the anti-aging formula protecting you from the UVA and UVB rays. There are no known toxicities.