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PEG-11 METHYL ETHER DIMETHICONE.

Valuable / HAIR CONDITIONING, SKIN CONDITIONING, SURFACTANT - EMULSIFYING

PEG-11 Methyl Ether Dimethicone is a sophisticated silicone-based emulsifier and conditioning agent, designed to enhance the sensorial experience of skincare formulations. It facilitates the even blending of diverse ingredients, imparting a smoother, lighter feel without any greasy residue, while also offering conditioning benefits to the skin.

Summary

emulsifying hair conditioning skin conditioning surfactant dispersant

Science

Mechanism of Action

This ingredient functions as a nonionic silicone-based surfactant, adept at emulsifying and dispersing components within mixed oil-in-water emulsions. It works by reducing surface tension (approximately 22 dynes/cm), which allows oil and silicone phases to integrate seamlessly into an aqueous base. On the skin, it forms a protective, vapor-permeable film, enhancing glide and spreadability of products while delivering conditioning effects.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 5.5 – 8.5
0 7 14

Stability

PEG-11 Methyl Ether Dimethicone is engineered for mixed oil-in-water emulsions, presenting a more hydrophilic character and reduced film-forming capacity compared to PEG-10 Dimethicone. Methyl ether capping of its polyethylene oxide chain slightly lowers the Hydrophilic-Lipophilic Balance (HLB) and increases fluidity. While a specific optimal pH range for this ingredient was not identified, similar dimethicone copolyols, such as PEG-8 dimethicone, exhibit functional stability within pH 5.5–8.5. It demonstrates compatibility with ethyl alcohol.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has affirmed the safety of dimethicone copolyol ingredients, including PEG-11 Methyl Ether Dimethicone, for use in cosmetic formulations. It exhibits a low toxicological profile, with no known potential for skin irritation or sensitization under typical cosmetic application. This dimethicone derivative is generally considered hypoallergenic and non-comedogenic. The U.S. Food and Drug Administration (FDA) has designated it safe for general or specific, limited use in food, as noted by EWG. Although CIR does not specify maximum concentration limits for cosmetic use, EWG-VERIFIED products incorporating this ingredient adhere to company-specific use restrictions and warnings.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

PEG-11 Methyl Ether Dimethicone is a valuable ingredient for enhancing formulation stability, product aesthetics, and skin feel across a broad range of cosmetic applications due to its efficient emulsifying and conditioning properties.

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