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PEG-8 COCOATE.

Valuable CAS 61791-29-5 / SURFACTANT - EMULSIFYING

PEG-8 COCOATE is a multi-functional polyoxyethylene glycol ester that serves as an emulsifying surfactant, stabilizing complex formulations by allowing the blend of oil and water. Beyond its role in product stability, it acts as a mild cleansing agent, a solubilizer for various actives, and a humectant that supports skin hydration.

emulsifying surfactant cleansing solubilizer solvent humectant lubricant

Science

This ingredient operates primarily by reducing the interfacial tension between immiscible phases, thereby enabling the formation of stable emulsions. As a cleansing agent, it facilitates the suspension and removal of oil-based impurities from the skin. It also functions as a solvent, aiding in the uniform dispersion of hydrophobic ingredients such as fragrances or colorants within aqueous formulations. Additionally, its humectant properties allow it to attract and bind water, thereby enhancing skin moisture and contributing to a smooth, lubricated feel.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Water
Optimal pH 4 – 7.5
0 7 14

Stability

Optimal stability is observed within a pH range of 4.0 to 7.5, based on the general stability profile of PEG-8 in a 1:20 concentration.

Conflicts

  • alkanes
  • paraffins
  • waxes
  • ethers

Safety

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

The Cosmetic Ingredient Review (CIR) Expert Panel deemed a closely related ingredient, PEG-8 Propylene Glycol Cocoate, safe for use in cosmetic formulations up to a maximum concentration of 10%. The CIR Panel revised its stance in 2010, removing previous caveats regarding use on damaged skin. To ensure safety, strict control over potential impurities such as 1,4-dioxane (max 5 ppm), ethylene oxide (max 1 ppm), and heavy metals (max 10 ppm combined) is crucial during purification processes.


Your Skin

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

Our Assessment

Valuable

PEG-8 COCOATE is a valuable ingredient for its multifunctional properties in stabilizing formulations, enhancing cleansing, solubilizing other components, and contributing to skin hydration, all within established safety parameters.


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