Methyl Glucose Sesquistearate

Benefits
Softening
Concerns
Malassezia Feeding

What is Methyl Glucose Sesquistearate?

Methyl Glucose Sesquistearate is an ester formed from methyl glucoside, derived from corn-derived glucose, and stearic acid from vegetable sources. This biodegradable compound serves as a multifunctional ingredient in skincare products like moisturizers, lotions, and cleansers. It works by lowering interfacial tension between oil and water phases, enabling the formation of stable emulsions with a smooth, lightweight texture. As an emollient, it adheres to the skin's surface, mimicking natural lipids to provide a protective veil that enhances product spreadability and reduces tackiness. Commonly found in natural and sensitive-skin formulations, it contributes to creamy consistencies without greasiness, supporting even distribution of active ingredients.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 View on EWG →
PubChem View on PubChem →

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.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Provides a softening effect by smoothing skin's surface and improving texture.

Supports emulsion stability for consistent lotion and cream formulas.

Conditions skin to promote flexibility and comfort during use.

Who It's For

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

Who May Benefit Who Should Avoid
People with dry or rough skin needing gentle softening.
Those prone to Malassezia-related skin issues like fungal acne.
Individuals preferring mild, plant-based emulsifiers in daily moisturizers.
People with known sensitivities to glucose esters or stearates.
Users of sensitive-skin products seeking stable, non-irritating textures.
Individuals experiencing irritation from emollient-heavy formulations.

Safety Notes

  • Considered low hazard with minimal risk of adverse effects in typical use.
  • Suitable for most skin types when formulated properly in cosmetics.

Frequently Asked Questions about Methyl Glucose Sesquistearate

What makes Methyl Glucose Sesquistearate suitable for creams?

It blends oil and water phases smoothly, creating stable, spreadable textures.

Is it safe for sensitive skin?

Yes, it carries a low safety rating and gentle conditioning properties.

Does it support skin hydration?

It softens skin and pairs well with humectants to aid moisture retention.