Silica Powder Microspheres - Used in Mineral Makeup & Cosmetics Silica Microspheres, from amorphous hydrated silica, is a useful addition to the ingredients list of any formulation. These microspheres are of superior quality and will improve the performance and feel of any product. Imagine thousands of tiny ball bearings gliding silkily across your skin. The spherical particle shape scatters light helping to blur the look of fine lines and wrinkles, it is also oil absorbent. Used in high quality mineral foundations, blushers, bronzers, eye shadows and skin prep creams and lotions. Because of the above properties, makes it a perfect ingredient to make a natural dry hair shampoo! Usage rate: 1%-12% by weight.