Polyglyceryl-6 Stearate

What is Polyglyceryl-6 Stearate?

Polyglyceryl-6 stearate is a non-ionic surfactant and emulsifier created by esterifying polyglycerol-6, a polymer derived from plant-based glycerol, with stearic acid, a common saturated fatty acid from vegetable oils like palm or coconut. It belongs to the polyglyceryl ester family, prized in cosmetics as a PEG-free alternative for formulating oil-in-water emulsions. In products such as lotions, creams, and cleansers, it works by positioning itself at the oil-water interface, reducing surface tension to prevent phase separation and ensure a smooth, stable texture. Its emollient properties arise from its lipid-like structure, which helps mimic skin's natural barrier, while its surfactant action enables effective dispersion of ingredients without harshness.

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

Provides emollient effects to soften and smooth skin's surface.

Acts as a surfactant to support gentle cleansing and ingredient mixing.

Functions as an emulsifying agent for stable, even-textured formulations.

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 softening without greasiness.
Individuals with rare allergies to glycerol or stearic acid derivatives.
Those preferring mild, non-irritating cleansers and lotions.
Those sensitive to fatty acid esters in high concentrations.
Users of emulsion-based products like moisturizers and body washes.
People avoiding multi-functional surfactants in minimalistic routines.

Safety Notes

  • Rated low hazard by safety assessments for typical cosmetic use.
  • Non-comedogenic, unlikely to clog pores in formulations.

Frequently Asked Questions about Polyglyceryl-6 Stearate

What is Polyglyceryl-6 Stearate made from?

It's an ester from polyglycerol-6 (glycerol-derived) and stearic acid from vegetable sources.

Is it safe for sensitive skin?

Yes, it has a mild profile suitable for many sensitive skin formulations.

What products commonly use it?

Found in lotions, creams, and cleansers for emulsifying and softening.