PEG-5 Glyceryl Stearate

PEG / Ethoxylated

What is PEG-5 Glyceryl Stearate?

PEG-5 Glyceryl Stearate is a synthetic polyether compound formed by ethoxylating glyceryl stearate, which derives from stearic acid and glycerol sourced from vegetable oils or animal fats. This process attaches five ethylene oxide units, creating a hydrophilic molecule with lipophilic properties. Primarily used in rinse-off and leave-on skincare products like lotions, creams, shampoos, and body washes, it acts as a co-surfactant and emulsifier. By lowering surface tension at the oil-water interface, it forms stable micelles that blend immiscible phases, preventing separation and ensuring smooth textures. Its self-emulsifying nature makes it valuable in oil-in-water formulations, aiding in the dispersion of active ingredients and enhancing product spreadability without heavy greasiness.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 3 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

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

Supports stable emulsions for consistent cream and lotion textures.

Facilitates gentle cleansing in washes and shampoos by reducing surface tension.

Non-comedogenic, suitable for formulations targeting clearer skin appearance.

Who It's For

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

Who May Benefit Who Should Avoid
Users seeking smooth, non-separating moisturizers and lotions.
Those with known sensitivity to ethoxylated compounds.
Individuals preferring lightweight cleansers with good foaming.
People concerned about potential impurities in PEG ingredients.
People with normal to combination skin needing balanced hydration.
Individuals preferring completely natural or minimalist formulations.

Safety Notes

  • Rated low hazard by EWG, generally safe in cosmetic concentrations.
  • Possible trace contaminants from manufacturing, but regulated for purity.

Frequently Asked Questions about PEG-5 Glyceryl Stearate

What does PEG-5 Glyceryl Stearate do in products?

It emulsifies oils and water for stable lotions and aids cleansing by lowering surface tension.

Is it safe for daily skincare use?

Yes, with a low EWG hazard score and evidence of mildness in cosmetics.

Does it clog pores?

No, it carries a comedogenic rating of zero.