Zeolite – Cosmetic Applications in Personal Care Products

What Is Zeolite?

Zeolites are crystalline aluminosilicates composed primarily of silica (SiO₂) and alumina (Al₂O₃), together with varying proportions of metallic oxides.

They can be produced synthetically through hydrothermal treatment of aluminosilicate materials or obtained from naturally occurring mineral sources. Zeolites may also undergo partial ion exchange to introduce different cations into their structure.

Specific zeolites are identified by designations related to their crystal structure and predominant cation, such as KA, CaX, and NaY.

Cosmetic Applications

Zeolites have properties that make them useful in cosmetic and personal care formulations. They have a high heat of adsorption and can hydrate and dehydrate while maintaining their structural stability.

Their ability to interact with and retain moisture contributes to their use in formulations where adsorption and moisture management are desirable.

Safety and Handling

The safety of zeolite ingredients has been assessed by the Cosmetic Ingredient Review (CIR) Expert Panel.

Zeolites require careful handling because their hydration process can be exothermic, meaning that heat may be released when a dehydrated zeolite becomes hydrated. Natural zeolites can therefore act as a self-heating material under certain conditions.

Extreme care must be used when handling zeolites, particularly in their dehydrated form and when they come into contact with water.

Ingredient Information

INCI: Zeolite

Composition: Crystalline aluminosilicates containing silica (SiO₂), alumina (Al₂O₃), and metallic oxides.

Functions: Adsorbent, moisture management

References

Dweck, Anthony. Handbook of Natural Ingredients (Dweck Books 4). Dweck Data.