PEG-15 Glyceryl Stearate

PEG / Ethoxylated

What is PEG-15 Glyceryl Stearate?

PEG-15 Glyceryl Stearate is a synthetic compound formed by esterifying glyceryl stearate—a blend of glycerol and stearic acid from plant or animal fats—with 15 units of polyethylene glycol. This ethoxylation process enhances its water solubility and functionality. Primarily used in rinse-off and leave-on skincare like body washes, shampoos, lotions, and makeup removers, it lowers surface tension to promote foaming and cleansing while forming a protective film at oil-water interfaces. This stabilizes emulsions, preventing separation and ensuring even texture and application. In formulations, it aids in dispersing oils effectively, improving rinseability and product consistency without altering skin feel significantly.

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:

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 thorough cleansing by reducing surface tension for better lather and dirt removal.

Stabilizes emulsions in creams and lotions for smooth, consistent textures.

Enhances spreadability and rinse-off in cleansers and shampoos.

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 seeking stable, non-separating moisturizers and lotions.
Those sensitive to ethoxylated ingredients or PEG compounds.
Users of foaming body washes or shampoos for effective cleansing.
Individuals with very dry skin prone to barrier disruption.
People preferring creamy textures in daily skincare routines.
Users avoiding synthetic surfactants in favor of natural alternatives.

Safety Notes

  • Deemed safe for cosmetic use by expert reviews when formulated properly.
  • Low comedogenic potential, unlikely to clog pores.

Frequently Asked Questions about PEG-15 Glyceryl Stearate

What does PEG-15 Glyceryl Stearate do in products?

It serves as a surfactant for cleansing and foaming, and an emulsifier to mix oil and water phases stably.

Is it suitable for sensitive skin?

Generally low irritation risk, but those with PEG sensitivity may prefer alternatives.

Does it clog pores?

Rated non-comedogenic, so unlikely to contribute to breakouts.