Description

Dimethicone Peg-8 Isostearate is a multifunctional silicone-based surfactant and emulsifier, created by the reaction of dimethicone with PEG-8 isostearate. This compound matters for its unique ability to combine the smoothing, conditioning, and water-repellent properties of silicones with the emulsifying and solubilizing power of a PEG ester. It is primarily needed by formulators in the personal care and cosmetic industries seeking to create stable, elegant, and high-performance emulsions, particularly in sun care, color cosmetics, and skin care products.

Application

• Primary emulsifier and stabilizer in water-in-silicone (W/Si) and oil-in-water (O/W) emulsions.
• Key ingredient in sunscreen formulations to improve SPF efficacy and water resistance.
• Used in color cosmetics (foundations, primers, BB creams) for enhanced spreadability and a silky, non-greasy finish.
• Formulation of skin care creams and lotions to improve texture and sensory properties.
• Acts as a solubilizer and carrier for active ingredients in various topical preparations.
• Component in hair care products such as conditioners and serums for detangling and shine.
• Used in makeup removers and cleansing oils for effective yet mild cleansing.
• Potential applications in industrial lubricants and release agents where silicone compatibility is required.

Basic Information

Product Name	Dimethicone Peg-8 Isostearate
CAS No.	133448-16-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	PEG-8 Dimethicone Isostearate; Polysiloxane polyalkyl polyether copolymer; Silicone glycol copolymer; ABIL® EM 90 (Evonik); KF-6017 (Shin-Etsu); Silicone surfactant; Polyoxyethylene glycol dimethicone isostearate; Dimethylsiloxane-glycol copolymer
EINECS	Contact for details

Quality Control

Our Dimethicone Peg-8 Isostearate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and performance for cosmetic and personal care applications. Certificates of Analysis (COA) documenting key parameters such as assay, viscosity, and appearance are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider keeping under an inert atmosphere (e.g., nitrogen) to preserve stability and prevent degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear to slightly hazy liquid
Color	Colorless to pale yellow
Identification (IR)	Complies
Assay	≥ 95.0%
Viscosity (25°C)	Contact for details
Water Content	≤ 1.0%
pH (5% solution)	5.0 - 7.0

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.