Sodium isostearate

Sodium isostearate (CAS 64248-79-9), also known as sodium isooctadecanoate, is the sodium salt of isostearic acid, a branched-chain fatty acid derivative. It functions as an emulsifier, surfactant, and skin-conditioning agent across personal care and industrial formulations.

Its branched structure prevents the crystallization issues common with straight-chain fatty acid soaps, giving formulators greater flexibility in texture and stability. In personal care, it is used to build bar soaps, stick deodorants, and anhydrous formulations.

Cosmetic formulators incorporate it into emollient creams and color cosmetics to improve spreadability and skin feel without the drag associated with saturated soap bases. It is ideal for products where a non-waxy, pliable consistency is required.

In coatings and sealant systems, it functions as a dispersant and wetting agent for pigments and fillers, improving substrate adhesion and coating uniformity. This ensures a more consistent application and finish across various industrial surfaces.

Textile and leather processing operations use it as a softening and surface-modification agent to enhance material hand and finish quality. Its chemical properties allow for deep penetration and lasting softness in high-end fabric treatments.

Sodium isostearate is typically supplied as a paste or soft solid, reflecting the liquid nature of its parent isostearic acid. It is available in cosmetic-grade and technical-grade specifications to meet the requirements of diverse buyers.

Packaging is commonly offered in drums or totes suited to mid- to large-volume procurement. Our supply chain ensures consistent quality and availability for manufacturers requiring reliable surfactant and emulsification solutions.