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PEG-150 OLEATE.

Valuable CAS 9004-96-0 / SURFACTANT - CLEANSING

PEG-150 Oleate is a versatile polyethylene glycol ester of oleic acid, primarily utilized for its role in enhancing product texture and stability. It functions as an emulsifier and surfactant, while also contributing humectant properties to support skin hydration.

Summary

emulsifying surfactant viscosity controlling humectant solvent

Science

Mechanism of Action

This ingredient effectively stabilizes oil and water phases, preventing product separation and ensuring a uniform consistency. As a surfactant, it aids in the thorough cleansing of skin by enabling oil-based impurities to mix with water. Its polyethylene glycol component acts as a humectant, drawing and retaining moisture in the skin, and both the oleic acid and PEG portions may facilitate deeper penetration of other cosmetic ingredients.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

As an ester, PEG-150 Oleate is susceptible to hydrolysis in hot alkaline solutions and may saponify with strong acids or bases, affecting its stability. To maintain optimal integrity, formulations containing this ingredient should be stored at lower temperatures and protected from light and oxygen, as general PEG solutions can experience pH reduction and increased ionic strength over time.

Conflicts

  • strong acids
  • strong bases
  • strong oxidizing agents
  • salicylates
  • phenolic substances
  • iodine salts
  • salts of bismuth
  • salts of silver
  • tannins
  • preservatives (potential complex formation)

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Low

While a specific Cosmetic Ingredient Review (CIR) Expert Panel assessment for PEG-150 Oleate is currently unavailable, the panel has evaluated and deemed many related PEG compounds and esters safe for cosmetic application. For example, PEG-150 Stearate and PEG-150 Distearate (up to 33.2% in cleansers) have been found safe. Generally, PEGs are considered minimally irritating and non-sensitizing when incorporated into properly formulated products.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
No Oily
No Sensitive
Irritancy Low
Comedogenicity Medium

Our Assessment

Verdict

Valuable

PEG-150 Oleate is a valuable multi-functional ingredient that significantly enhances product texture and stability, provides mild humectant benefits, and may facilitate ingredient absorption, all with a generally low risk of irritation.

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