PEG-20 Methyl Glucose Sesquistearate

PEG / Ethoxylated

Benefits

Softening

What is PEG-20 Methyl Glucose Sesquistearate?

PEG-20 Methyl Glucose Sesquistearate is a synthetic derivative formed by ethoxylating methyl glucose sesquistearate, where methyl glucose comes from plant-based glucose and sesquistearate involves stearic fatty acid esters from vegetable sources. This process adds 20 ethylene oxide units, creating a water-soluble compound commonly found in moisturizers, lotions, sunscreens, and mild cleansers. In formulations, it acts as an emulsifying agent by forming a protective film at the oil-water interface, preventing separation for smooth, stable textures. Its surfactant properties lower surface tension to support even ingredient dispersion and light foaming, while emollient characteristics allow it to deposit a thin lipid-like layer on skin, enhancing softness and slip without greasiness. Derived partly from renewable plant materials, it bridges natural and synthetic functionality in modern cosmetics.

Comedogenic Rating 0/5 Low risk of clogging pores

EWG Safety Rating 3 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Emollient

Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.

Surfactant

Lowers surface tension to enable cleansing, emulsifying, and foaming; central to shampoos, body washes, and many emulsions and micellar systems.

Emulsifying agent

Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.

Benefits

Provides softening effect by smoothing skin surface and improving texture.

Stabilizes emulsions for consistent cream and lotion consistency.

Supports mild surfactant action for better product spreadability and cleansing.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit	Who Should Avoid
Individuals with dry or rough skin seeking emollient benefits.	People sensitive to ethoxylated or PEG compounds.
Users of emulsion-based products like lotions for stable formulations.	Individuals avoiding potential trace impurities from manufacturing.
Those preferring low-comedogenic ingredients in daily moisturizers.	Those with known reactions to fatty acid derivatives like stearates.

Safety Notes

EWG rates it 3, indicating moderate concerns mainly from limited data and possible contaminants.
Deemed safe for cosmetic use by regulatory reviews when properly purified.

Frequently Asked Questions about PEG-20 Methyl Glucose Sesquistearate

What makes PEG-20 Methyl Glucose Sesquistearate unique?

It combines plant-derived glucose and stearates with PEG ethoxylation for versatile emulsifying and softening in skincare.

Is it suitable for sensitive skin?

Generally low irritation, but those sensitive to PEGs should patch test due to potential individual reactions.

How does it function in products?

Emulsifies oils and water for stable textures, softens skin as an emollient, and aids mild cleansing as a surfactant.