Zeolite
Zeolite refers to crystalline aluminosilicates composed of silica (SiO₂) and alumina (Al₂O₃) in various proportions, combined with metallic oxides. It is produced by hydrothermal treatment of a solid aluminosilicate or of a gel obtained by reacting sodium hydroxide, alumina hydrate, and sodium silicate. The initially obtained product, or a naturally occurring analog, may be partially ion-exchanged to introduce other cations, with specific zeolites identified by notations indicating crystal structure and predominant cation (e.g., KA, CaX, NaY). CAS number: 1318-02-1.
Zeolite functions primarily as an absorbent and mattifier, helping to reduce excess oil and shine on the skin. It also acts as a deodorant and serves anticaking and bulking roles in cosmetic formulations. Its absorbent properties make it a common ingredient in self-heating masks, dry shampoos, and pore-clearing products.
