Polyglyceryl-3 Methylglucose Distearate

What is Polyglyceryl-3 Methylglucose Distearate?

Polyglyceryl-3 Methylglucose Distearate is a biodegradable ingredient synthesized from renewable plant sources, including glucose derived from corn starch, glycerol, and stearic acid from vegetable oils like palm or soy. It belongs to the polyglyceryl ester family, designed as a gentle alternative to ethoxylated emulsifiers. In cosmetics, it appears in lotions, creams, and cleansers, where it acts at the oil-water interface. By forming a protective film around oil droplets, it prevents separation, ensuring product stability and even texture. Its dual emollient-surfactant properties allow it to smooth skin surfaces, enhance spreadability, and support mild foaming or dispersion in rinse-off formulas, contributing to a lightweight, non-greasy feel.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1 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

Softens and smooths skin texture for improved feel.

Stabilizes emulsions in creams and lotions for consistent application.

Supports gentle cleansing by reducing surface tension without harshness.

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 skin seeking hydration and smoothness.
Those with rare allergies to stearic acid or glucose derivatives.
Individuals preferring plant-based, PEG-free formulations.
People sensitive to coconut or palm-derived fatty acids.
Users of sensitive skin products needing stable, mild textures.
Individuals avoiding any surfactant in ultra-minimalist routines.

Safety Notes

  • Rated low hazard by safety assessments with no usage restrictions.
  • Non-comedogenic, unlikely to clog pores or cause breakouts.

Frequently Asked Questions about Polyglyceryl-3 Methylglucose Distearate

Is Polyglyceryl-3 Methylglucose Distearate natural?

It derives from plant sugars and oils, making it suitable for natural-leaning cosmetics.

Does it cause irritation?

Evidence indicates low irritation risk for most users in typical concentrations.

What products use it?

Common in lotions, creams, and gentle cleansers for emulsion stability.