STABILGREEN® K

Co-emulsifying stabilizing system

INCI
Polyglyceryl-4 Oleyl Ether, Oleyl Phosphate

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STABILGREEN® K is the phosphate ester of Polyglyceryl-4 and Oleyl Phosphate, an excellent stability enhancer that also improves feel and texture. It is 100% natural and palm-free, composed of glycerin from renewable sources, upcycled fatty acids from olive oil waste, and mineral-derived phosphorus pentoxide.

As a liquid crystal OW emulsifier and hydrophilic lipid, it stabilizes various emulsions, providing a fresh, velvety, and glossy finish. The oily, clear, and amber liquid is soluble in vegetable oils, fatty alcohols, acids, and esters, and compatible with substances of different polarities, such as polar and non-polar vegetal products, synthetic oils, silicone derivatives, and fatty acid esters.

STABILGREEN® K reduces the need for primary emulsifiers. Its negative charges prevent vesicle aggregation, enhancing emulsion stability. It increases the hydrophobic nature and viscosity of the oil phase, creating a thicker, cohesive layer that improves water resistance and adherence to the skin. Chemically similar to skin phospholipids, it ensures excellent compatibility with the skin barrier.

In cream and milk formulations, adjusting the emulsifier/STABILGREEN® K ratio allows for lighter textures with superior spreadability. It is ready-to-use, even in cold processes, and stable across all pH levels, outperforming benchmarks that require heating and are pH sensitive. It is also a valuable trouble-shooter for stabilizing OW emulsions post-emulsification in cold processes.

EFFICACY TESTS

LIQUID CRYSTALS

STABILGREEN® K forms a liquid crystals structure that helps to retain the aqueous phase and the moisturizing effect of the formula.

Key Product Details

% OF USE

0.5 – 1.0% as co-emulsifier or “trouble shooter”
2.0 – 3.0% as sole emulsifier

APPLICATIONS

Stabilizer ideal for OW emulsions containing high amounts of zinc oxide and titanium dioxide (sun care and anti-redness emulsions )

TECHNICAL DATA
APPEARANCE VISCOUS LIQUID
COLOUR AMBER
ODOUR CHARACTERISTIC
PH 6.0 – 8.0
ACID VALUE 25 MAX (MG KOH/G)
SAPONIFICATION VALUE 50 – 70 (MG KOH/G)
DRY RESIDUE (105°C) 92 – 94 %
HLB 11 (EXPERIMENTAL)
PROPERTIES
  • Versatile Emulsifying System: Functions as both an emulsifying agent and a co-emulsifying system, providing excellent stability at high and low temperatures and pH.

  • Ready to Use: Oily liquid that requires no dissolution or heating, offering good water resistance through the formation of a superficial hydrophobic film.

  • Superior Sensory Characteristics: Provides a long-lasting emollient/moisturizing effect without leaving an oily feel or greasy appearance.

  • Wide Solubility: Soluble in vegetable oils, fatty alcohols, fatty acids and their esters, dispersible in warm water, and miscible in mineral oils.

  • Enhances Emulsion Stability: Helps reduce the amount of primary emulsifier needed, stabilizing emulsions with different viscosities and limiting the thixotropic effect, without modifying the HLB of the emulsifier or destabilizing liquid crystal structures.

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