Hydroxypropyl Methylcellulose Stearoxy Ether

Product Description

Hydroxypropyl Methylcellulose Stearoxy Ether is a hydrophobically modified non-ionic cellulose ether, manufactured as a high-purity functional polymer for advanced B2B cosmetic formulations. By incorporating stearyl hydrophobic groups into the cellulose backbone, this ingredient provides unique associative thickening properties and a superior, silky skin feel compared to traditional HPMC. As formulators seek "luxury-touch" textures without synthetic silicones, this direct factory supply ingredient offers an essential solution for high-stability emulsions and elegant personal care products.

Product Specification

• INCI Name: Hydroxypropyl Methylcellulose Stearoxy Ether
• Chinese Name: 羟丙基甲基纤维素硬脂氧基醚
• CAS No.: 121688-01-1
• Appearance: White to off-white powder
• Hydrophobic Modification: Stearoxy (C18) modified
• Viscosity (1% Solution): 100 - 1,000 mPa.s (Customizable grades available)
• Loss on Drying: ≤ 5.0%
• pH Value: 5.5 – 7.5 (1% aqueous solution)
• Purity: ≥ 98.0%

Key Benefits & Applications

• Associative Thickening: The stearyl chains interact with oil droplets and other hydrophobic components, creating a robust 3D network for superior emulsion stability.
• Silky Sensory Profile: Significantly improves the "play-time" and spreadability of creams, leaving a soft, non-sticky, and velvet-like finish on the skin.
• Foam Stabilization: In cleansing systems, it enhances the creamy texture of the lather and prevents foam collapse in the presence of oils.
• Salt & Surfactant Tolerance: Maintains consistent viscosity even in formulations with high electrolyte content or complex surfactant blends.
• Hair Conditioning: Provides excellent wet combing and a smooth feel in sulfate-free hair care applications.

Formulation Guidelines

• Recommended Usage: 0.1% – 1.0% for thickening and sensory modification.
• Incorporation: Best added to the water phase with high-speed dispersion; pre-wetting with glycols or dispersing in oil before adding water can prevent agglomeration.
• Temperature Stability: Stable under standard heating processes (up to 80°C) used in emulsion manufacturing.
• Compatibility: Compatible with a wide range of cosmetic ingredients including non-ionic, anionic, and cationic systems.
• Synergy: Combine with Behentrimonium Chloride to create high-viscosity, silicone-free hair conditioners with exceptional wet-combing properties and a silky after-feel.