thickeners

Kaolin

Kaolin Clay

thickenerfilm formerantimicrobialviscosity modifier
CAS Number:1332-58-7

INCI Name

Kaolin

Functions

4 Roles

Sustainability

8/10

Category

thickeners

What It Does

Kaolin is a naturally occurring soft white clay mineral composed primarily of kaolinite (hydrated aluminum silicate), mined from deposits formed by the weathering of feldspar-rich rocks. Prized in cosmetics for its exceptional oil-absorbing properties and gentle nature, it's particularly valued in face masks, dry shampoos, and powder formulations where it provides a silky texture while drawing out impurities and excess sebum without over-drying. Its fine particle size and neutral white color make it ideal for creating smooth, non-irritating formulations suitable even for sensitive skin types.

Controls product consistency
Improves application experience
Stabilizes suspensions and emulsions
Creates desired texture profiles

Technical Properties

pH Range

4.0-9.0

Optimal working range

Ionic Charge

anionic

Molecular charge type

Viscosity Effect

thickening

Impact on formula thickness

Ingredient Compatibility

Works Well With

nonionic surfactantsmost emollientshumectantsbotanical extractsfilm formerspreservatives

Avoid Combining

strong acidsstrong alkaline ingredientshigh concentrations of cationic polymers
Compatibility analysis powered by OpenMix — open-source formulation science

Sustainability Profile

Sustainability Score

8/10

Biodegradability

not readily biodegradable

Source

mineral

Feedstock

naturally occurring aluminum silicate clay

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