Polyoxyethylene Stearate(CAS 9004-99-3)
Polyoxyethylene Stearate, also known as Polyethylene Glycol Stearate, is a classic non-ionic surfactant and emulsifier widely used in global cosmetic and daily chemical industries.
Its INCI name is PEG Stearate, with unified CAS No. 9004-99-3 and EC number 618-405-1. The molecular formula is C₃₄H₇₀O₉ with an average molecular weight of 622.91 g/mol.
This product is synthesized from stearic acid and ethylene oxide through ethoxylation polymerization reaction.
Our cosmetic-grade Polyoxyethylene Stearate adopts high-precision polymerization and purification technology, with effective active content ≥99.0%.
The product appears as white to pale yellow waxy solid or viscous liquid.
It is soluble in organic solvents and hot water, with excellent emulsifying, dispersing, thickening and stabilizing performance, low surface tension and strong formula compatibility.
The 1% aqueous solution pH value is neutral and stable between 5.0–7.0, with stable physical and chemical properties, acid and alkali resistance and hard water resistance.
The minimum order quantity is 1KG.
It is widely applied in skincare products, hair care formulas, cream cosmetics, daily cleaning products and industrial emulsification systems.
Polyoxyethylene Stearate(CAS 9004-99-3)
Polyoxyethylene Stearate is a versatile ethoxylated fatty acid ester non-ionic surfactant, serving as a core multifunctional auxiliary material for cosmetic emulsification and formula stabilization. With adjustable hydrophilic and lipophilic balance, it can flexibly adapt to oil-in-water and water-in-oil emulsion systems, effectively solving common formula problems such as oil-water stratification, powder agglomeration and poor system stability. It has mild skin affinity, no irritation to skin and scalp, and will not cause dry and tight discomfort. In addition to excellent emulsifying performance, it also has outstanding thickening, moisturizing and dispersion assisting effects, which can optimize product texture, improve formula uniformity and enhance product use experience. With stable performance in complex daily chemical systems and wide compatibility, it is widely used in high-quality personal care and cosmetic products worldwide.
Key Benefits
• Adjustable HLB & Strong Emulsification: HLB value customizable from 9.0 to 18.0, adapts to multiple emulsion systems with stable and efficient emulsifying capacity.
• Excellent Formula Stability: Outstanding resistance to acid, alkali and hard water, effectively prevents formula stratification, demulsification and powder precipitation.
• Mild & Low-Irritation: Non-ionic surfactant structure, mild to skin and scalp, no dry residue, suitable for long-term daily care formulas.
• Multifunctional Synergistic Performance: Integrates emulsification, thickening, dispersion and moisturizing functions to simplify formula structure and reduce auxiliary material types.
• Super Wide Compatibility: Perfectly compatible with anionic, cationic and non-ionic raw materials, flexible formula debugging for industrial mass production.
• Global Compliant & High Safety: Meets international cosmetic safety standards, low impurity content, stable batch consistency for global trade.
Applications
• Skincare Emulsion & Cream Products: Widely used in moisturizing lotion, face cream, body cream and barrier repair cream to stabilize emulsion and lock skin moisture.
• Professional Hair Care Formulas: Applied in hair conditioner, hair mask and hair styling products to smooth hair texture, improve combability and enhance luster.
• Mild Cleaning Products: Serves as emulsifier and thickener in facial cleanser, body wash and hand care products to optimize cleaning texture.
• Color Cosmetic Formulas: Used in foundation, cream blush and makeup base to disperse pigments, improve fineness and makeup adhesion.
• Daily Chemical & Industrial Emulsification: Suitable for mild daily detergents and cosmetic auxiliary emulsification systems to improve product stability.
Certificate Of Analysis (COA)
Test Item | Standard Specification | Test Result | Test Method |
Product Name | Polyoxyethylene Stearate (PEG Stearate) | Compliant | Visual Verification |
CAS No. | 9004-99-3 | Compliant | Document Verification |
Appearance | White to Pale Yellow Waxy Solid or Viscous Liquid, Mild Characteristic Odor | Compliant | Visual & Olfactory Inspection |
Effective Purity | ≥99.0% | 99.65% | High Performance Liquid Chromatography |
HLB Value | 9.0–18.0 (Customizable) | 12.5 (Standard Grade) | Calculation Method |
pH Value (1% Aqueous Solution) | 5.0–7.0 | 6.05 | pH Meter Method |
Acid Value | ≤1.0 mg/g | 0.32 mg/g | Titration Method |
Moisture Content | ≤0.1% | 0.04% | Karl Fischer Method |
Heavy Metal (Pb) | ≤10ppm | <5ppm | Atomic Absorption Spectrometry |
Conclusion | Conforms to Global Cosmetic Grade Standards | Qualified | Comprehensive Detection |
Frequently Asked Questions (FAQ)
• Q1: What global cosmetic standards does Polyoxyethylene Stearate comply with? A1: It meets EU SCCS, US FDA and China NMPA regulations for global compliant cosmetic production.
• Q2: What is the MOQ and bulk delivery capacity? A2: MOQ is 1KG, sufficient spot stock supports bulk orders and fast global shipping.
• Q3: What cosmetic formulas is this emulsifier suitable for? A3: Ideal for skincare cream, hair care, cleansing and color cosmetic emulsion systems.
• Q4: What are the standard storage conditions and shelf life? A4: Sealed cool dry storage, with a 24-month valid shelf life.
• Q5: Can you provide complete export certification documents? A5: Full set of COA, MSDS and customs clearance documents are available.
• Q6: What is the recommended formula addition dosage? A6: Conventional dosage is 1.0%-6.0%, adjustable per different cosmetic formula systems.
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