PEG-30 Dipolyhydroxystearate: Advanced Polymer Emulsifier for Ultra-Stable W/O Formulations

HLB 5.5 · Lightweight Textures · Multi-Industry Versatility

NIKOO's PEG-30 Dipolyhydroxystearate (INCI: *PEG-30 Dipolyhydroxystearate*, CAS 827596-80-5) is a high-purity, solvent-free polymeric emulsifier engineered to create exceptionally stable water-in-oil (W/O) emulsions. With its unique molecular structure and optimized HLB value of 5.5, this specialty ingredient delivers low-viscosity, flowable textures that spread effortlessly on skin, imparting a lightweight, non-greasy finish—ideal for luxury skincare, sunscreens, and functional cosmetics

Product Properties

It emulsifies various oils and is resistant to high electrolytes and ethanol. It can prepare W/O emulsions with a 90% aqueous phase and can incorporate high solids content. High-temperature emulsification is recommended, making it suitable for formulations incorporating multiple active ingredients. This superior water-in-oil emulsifier offers excellent cost-performance and excellent cold and hot stability.

It enables the production of high-internal-phase emulsions. Emulsions with internal phase concentrations exceeding 90% can be easily emulsified without requiring specialized production requirements. These emulsions typically have a wider particle size distribution, ranging from 0.4 to 4 mm, and a high viscosity suitable for creams. The viscosity of these high-internal-phase emulsions remains stable with increasing temperature, making them ideal for applications exposed to high temperatures, such as sunscreens. For pure silicone oil emulsions, it can be used as a co-emulsifier in conjunction with silicone co-polyols to enhance the stability of the emulsion and simplify the emulsification process.

Performance Advantages

 Ultra-Stable Emulsions:

• Forms heat-resistant (≤180°C) W/O systems with high internal phase content (up to 80% water) 
• Prevents phase separation during thermal cycling or long-term storage

Sensory Excellence:

• Enables silky-smooth spreadability and rapid absorption without tackiness .
• Reduces viscosity in creams/sprays for featherlight textures .

Process Efficiency:

• Cold-process compatible: Lowers energy consumption during production .
• Simplifies high-volume manufacturing of sprays and fluid lotions 

Core Properties

• Emulsification: Emulsifies a variety of oils, is resistant to high electrolytes and ethanol, and can produce W/O emulsions with water content up to 90%. It can also incorporate high solids content.
• Stability: Remains stable at high temperatures, making it suitable for applications in high-temperature environments such as sunscreens.
• Formulation Compatibility: Can be combined with other emulsifiers to enhance the stability of silicone oil emulsions.

Typical Applications

• Skin Care: Recommended addition: 2%-3% for regular creams, 2.5%-4% for foundations and sunscreens.
• Cosmetics: Used in the formulation of high internal phase emulsions to enhance skin feel and lightness.

Suitable for use in various water-in-oil skincare products. The recommended addition level is 2%-3% for regular W/O creams. The recommended addition level is 2.5%-4% for foundations and sunscreens, and can be combined with a small amount of other emulsifiers.

Synergistic Pairings

• + Zinc Oxide (5–15%): Enhances SPF stability and water resistance .
• + Squalane (3–10%): Boosts barrier repair without greasiness

Storage requirements: Store in a sealed, dry, cool and ventilated place, avoid mixing with flammable and explosive substances

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