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PEG-6 ISOLAURYL THIOETHER.

Optional / SURFACTANT - EMULSIFYING

PEG-6 ISOLAURYL THIOETHER is a multi-functional polyethylene glycol (PEG) derivative primarily utilized as a surfactant and emulsifying agent. It facilitates the stable blending of immiscible oil and water phases, while also serving as a humectant to attract and retain moisture in the skin.

Summary

Emulsifying Surfactant Humectant Solubilizer Solvent Binding Agent Consistency Enhancer Softening Agent Cleansing Agent Fixative

Science

Mechanism of Action

This ingredient operates by reducing surface tension between liquids, functioning as a surfactant to disperse insoluble particles and an emulsifier to stabilize formulations. As a PEG derivative, it forms hydrogen bonds with water molecules, thereby acting as a humectant to reduce transepidermal water loss. Its liquid form also allows it to solubilize and act as a solvent for various active ingredients, perfume oils, and colorants.

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 ≥6
0 7 14

Stability

Polyethylene glycols with a mean molar mass up to 600 g/mol, such as PEG-6 ISOLAURYL THIOETHER, are typically liquid and water-soluble. Its stability is observed to peak around a pH of 6, with degradation kinetics accelerating at pH values below 6 and proceeding more slowly at higher pH levels.

Conflicts

  • ethylene oxide impurities
  • 1,4-dioxane impurities

Safety

Safety Profile

CIR Status
Safe as used with restrictions
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Expert Panel has assessed 'Alkyl PEG Ethers,' including PEG-6 ISOLAURYL THIOETHER, concluding they are safe for cosmetic use when formulated to be nonirritating. Manufacturers are advised to minimize impurities like ethylene oxide and 1,4-dioxane, which the EWG notes as high contamination concerns. Application on damaged skin is not recommended. While no specific maximum concentration for PEG-6 ISOLAURYL THIOETHER is established, related PEG fatty acid esters have been found safe up to 25% in cosmetics. This ingredient has also received general or specific limited use approval in food by the U.S. FDA.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

PEG-6 ISOLAURYL THIOETHER is an effective surfactant and humectant, valuable for stabilizing emulsions and enhancing hydration, provided its formulation adheres to strict purity standards and avoids application on compromised skin.

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