Magnesium aluminum silicate (or magnesium aluminosilicate) is a naturally occurring mineral compound that is commonly used as a thickening agent in cosmetics and personal care products. It is also used in the production of ceramics, glass, and refractory materials.
Chemically, magnesium aluminum silicate is a type of clay mineral, with the chemical formula Al2Mg3(SiO4)4(OH)2. It is formed from the weathering of minerals such as feldspar and mica, and is found in abundance in many parts of the world.
In cosmetics, magnesium aluminum silicate is often used as a suspending agent, which helps to keep the other ingredients in the product evenly distributed. It is also used as a viscosity-increasing agent, which gives the product a thicker and more luxurious texture.