Alumina is a white powder that is commonly used in cosmetics. It is important to note that alumina is not the same as aluminum metal, however, it is also known as aluminum oxide. The chemical formula for alumina is Al2O3. In cosmetics, alumina is often used as a thickening agent, an absorbent, or as an abrasive in exfoliating products. It helps in absorbing impurities and excess oil from the skin, thus making it a common ingredient in facial cleansers and masks. Alumina has a fine white appearance and a high viscosity, which means that it has a thick, sticky consistency. When used in cosmetic products, it creates a smooth and creamy texture.
Origin
Alumina is typically made by calcining aluminum hydroxide at high temperatures to remove water and yield aluminum oxide. The resulting powder can be further processed to create various forms of alumina with different properties, such as particle size and surface area.
Safety profile
Alumina is generally considered safe for use in cosmetics and personal care products by various regulatory agencies. It has a low comedogenic rating and is unlikely to cause acne or clog pores. However, some people may be allergic to alumina, and it is always recommended to perform a patch test. Further, Alumina is a vegan and halal ingredient, as it is derived from minerals and not from animal sources.