Description

Polyglyceryl-4 Isostearate is a non-ionic, multifunctional surfactant and emulsifier derived from natural glycerin and isostearic acid. This compound is highly valued for its excellent skin compatibility, emulsifying stability, and ability to create rich, stable textures in formulations. It is a critical ingredient for manufacturers in the personal care, cosmetics, and pharmaceutical industries seeking to develop high-performance, mild, and elegant products.

Application

• Primary Emulsifier in cosmetic creams, lotions, and sun care products for stable oil-in-water (O/W) emulsions.
• Co-emulsifier and Stabilizer in complex formulations to enhance texture and prevent phase separation.
• Skin Care Actives Carrier to improve the delivery and efficacy of functional ingredients.
• Viscosity Modifier in liquid soaps, shower gels, and cleansing formulations.
• Makeup Products such as foundations and BB creams for smooth application and long-lasting wear.
• Hair Care Conditioners and treatments to impart softness and manageability.
• Pharmaceutical Topicals for use in creams and ointments requiring gentle, non-irritating bases.

Basic Information

Product Name	Polyglyceryl-4 Isostearate
CAS No.	91824-88-3
Molecular Formula	C24H46O7 (Typical for main component)
Molecular Weight	~446.6 g/mol
Synonyms	Polyglycerol-4 Isostearate; Polyglyceryl-4 Monoisostearate; Isostearic Acid, Ester with Polyglycerin-4; Decaglycerol Monoisostearate; Polyglycerin-4 Isostearate; PG4 Isostearate; (Polyoxy-1,2-ethanediyl), α-isooctadecyl-ω-hydroxy-, ether with 1,2,3-propanetriol (4:1)
EINECS	Contact for details

Quality Control

Our Polyglyceryl-4 Isostearate is manufactured under strict quality management systems. Each batch is tested to ensure it meets high-purity standards and consistent performance for cosmetic and pharmaceutical applications. Certificates of Analysis (COA) documenting key parameters such as assay, acid value, saponification value, and heavy metal content are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This material is easily oxidized; for long-term storage, consider an inert atmosphere (nitrogen blanket) to maintain optimal quality and prevent rancidity. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Pale yellow to amber viscous liquid
Identification (IR)	Conforms
Assay (HPLC)	Min. 95%
Acid Value	≤ 2.0 mg KOH/g
Saponification Value	120 - 140 mg KOH/g
Hydroxyl Value	200 - 240 mg KOH/g
Water Content (KF)	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm

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