Magnesium Aluminum Silicate

Description: Magnesium aluminum silicate is a water-washed natural smectite clay that hydrates easily. Used in high pH personal care compositions such as depilatory, waving and hair relaxer products. Stabilizes both oil-in-water (o/w) and water-in-oil emulsions (w/o) at low concentrations (typically 1-2%) containing anionic or nonionic surfactants. The smectite colloidal structure effectively keeps the internal phase droplets suspended and separated and reduces the tendency of emulsions to thin out and break at elevated temperatures. Fine off-white to tan-greenish powder, odorless, pH 9.5 (w/w 5%). Viscosity about 500cps (4% solution). Insoluble but dispersible in water.

CAS: 12199-37-0

INCI Name: Magnesium aluminum silicate

Properties: Used as a rheological modifier and binder in various cosmetic preparations, especially in products with a high pH. Has thickening and suspending properties and effectively stabilizes emulsions. Improves significantly skin feel. Acts synergistically with common thickeners like xanthan gum & methyl cellulose.

Use: Add to water phase of formulas. Best when added to hot water (75oC) to reduce the hydrating time (15min vs 45min). Use a homogenizer for fastest results. Typical use level 0.5-3%. For external use only.

Applications: Hair care (shampoos, conditioners & styling products), depilatories, shower gels, creams, lotions, make-up, shaving creams, deodorants.

Documents: SDS, Fact Sheet, Sample Recipe, Certificate of Analysis

Used in Commercial Products:

Medicated Dandruff Shampoo		Exaggerate Liquid Eye Liner		Baked Blush
Brand: Zincon		Brand: Rimmel		Brand: Milani