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PEG-8 PROPYLHEPTYL ETHER.

Valuable CAS - / EMULSION STABILISING

PEG-8 PROPYLHEPTYL ETHER is a multi-functional polyether compound primarily acting as an emulsion stabilizer, surfactant, solvent, and humectant. It helps create stable cosmetic formulations, enhances the solubility and delivery of other ingredients, and contributes to skin hydration.

Summary

Emulsifying Surfactant Emulsion Stabilizer Solvent Solubilizer Humectant

Science

Mechanism of Action

This ingredient functions by reducing the interfacial tension between immiscible phases, thereby stabilizing oil-in-water emulsions. As a surfactant, it aids in cleansing and emulsification processes. Its solvent and solubilizer properties allow it to dissolve hydrophobic substances like active ingredients, fragrances, and colorants, improving their dispersion and potential skin penetration. Additionally, it acts as a humectant by attracting and binding water, which helps maintain the moisture content of the formulation and contributes to skin hydration.

Research

Clinical Evidence

Insufficient-data 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

PEG-8 PROPYLHEPTYL ETHER, as a PEG/PPG ether, is generally stable under both acidic and alkaline conditions. For the related compound PEG-8, optimal stability is indicated within a pH range of 4.5 to 7.5 at a 1:20 concentration.

Conflicts

  • Must be formulated to be non-irritating to avoid potential skin irritation, especially on sensitive or broken skin.
  • Immiscible with alkanes, paraffins, waxes, and other ethers.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that PEG-8 PROPYLHEPTYL ETHER, along with 130 other alkyl PEG/PPG ethers, is safe for use in cosmetics when the final product is formulated to be non-irritating. The FDA has approved the related compound PEG-8 for use, though it is specifically not recommended for application on broken skin. No specific SCCS opinion is available for this ingredient. While no maximum concentration for PEG-8 PROPYLHEPTYL ETHER is specified, related PEG-8 has been assessed by CIR at concentrations ranging from 0.0002% to 85%.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PEG-8 PROPYLHEPTYL ETHER is a valuable ingredient for cosmetic formulations, offering broad utility in stabilizing emulsions, dissolving other substances, and providing hydration, provided it is integrated into non-irritating product designs.

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