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PEG-55 PROPYLENE GLYCOL OLEATE.

Valuable CAS 86481-08-5 / SURFACTANT - CLEANSING, VISCOSITY CONTROLLING

PEG-55 Propylene Glycol Oleate is a versatile ingredient that primarily functions as a surfactant and viscosity controlling agent in skincare formulations. It also acts as a moderate solubilizer, aiding the dispersion of various cosmetic components.

Summary

Surfactant Cleansing Agent Viscosity Controlling Agent Solubilizer Emollient Conditioning Agent Humectant Binding Agent Softening Agent

Science

Mechanism of Action

This ingredient works by reducing the surface tension of liquids, which facilitates the mixing of oil and water, making it effective for cleansing and rinsing away dirt and impurities from the skin. Its polymeric structure, specifically the PEG and propylene glycol components, contribute to its ability to modulate product thickness and consistency. The oleate portion of the molecule further enhances its capacity to gently condition and soften the skin, while also acting as a solubilizer for lipophilic substances like fragrances and oils.

Research

Clinical Evidence

High confidence
Effective range 0.5–10%
Optimal

N/A

Key findings

  1. 01 Demonstrated non-allergenic properties in clinical patch tests.
  2. 02 Concluded to be safe as used in cosmetic formulations.

Transparency

Dusting Analysis

Not commonly dusted

PEG-55 Propylene Glycol Oleate is typically utilized as a liquid or paste, functioning as an emulsifier and viscosity modifier, and is not commonly handled as a powder ingredient that would pose dusting concerns.

The Formula

Formulation

Solubility
Both
Optimal pH 5 – 8
0 7 14

Stability

This ingredient maintains stability and efficacy within a pH range of 5 to 8, making it suitable for a wide array of skin cleansing products. Polyethylene glycols, including this derivative, are generally well-tolerated by the skin and exhibit resistance to microbiological degradation, often negating the need for additional preservatives specifically for the ingredient itself.

Conflicts

  • Requires careful quality control during manufacturing to mitigate potential impurities such as 1,4-dioxane and ethylene oxide.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed its safety for use in cosmetic formulations at concentrations up to 10%. Earlier advisories concerning use on damaged skin, related to sensitization and nephrotoxicity from PEG-based antimicrobial preparations, have been explicitly removed in subsequent reviews (2010 and 2016) for PEG ingredients generally. However, manufacturers must ensure purification processes effectively control potential trace impurities like 1,4-dioxane and ethylene oxide, a concern recognized by the FDA.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-55 Propylene Glycol Oleate is a valuable multi-functional ingredient, safely used up to 10%, offering effective cleansing, viscosity control, and solubilizing properties with low sensitization risk, suitable for a broad range of formulations.

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