Synthetic amorphous silica (SAS), in the form of pyrogenic (fumed), precipitated, gel or
colloidal SAS, has been used in a wide variety of industrial and consumer applications
including food, cosmetics and pharmaceutical products for many decades. Based on
extensive physico-chemical, ecotoxicology, toxicology, safety and epidemiology data, no
environmental or health risks have been associated with these materials if produced and
used under current hygiene standards and use recommendations. With internal structures in …