Propylene Glycol Stearate SE

What is Propylene Glycol Stearate SE?

Propylene Glycol Stearate SE is a synthetic ester produced by combining propylene glycol with stearic acid, a saturated fatty acid often derived from palm or coconut oils. The 'SE' specifies its self-emulsifying variant, optimized for creating stable oil-in-water systems without additional stabilizers. Commonly found in moisturizers, creams, foundations, and mild cleansers, it functions by reducing interfacial tension between immiscible liquids, forming a protective film that prevents phase separation and enhances product homogeneity. This action also imparts a creamy texture, improves spreadability on skin, and supports mild surfactant activity for effective yet gentle removal of impurities in rinse-off products.

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:

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

Stabilizes emulsions to maintain lotion and cream consistency over time.

Facilitates smooth blending of ingredients for even product application.

Supports gentle cleansing action in washes 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
Users of emulsion-based moisturizers seeking stable textures.
Those sensitive to propylene glycol derivatives.
Individuals preferring non-comedogenic formulas for daily routines.
Individuals preferring completely glycol-free formulations.
People incorporating lotions or mild cleansers into skincare regimens.
People with known allergies to fatty acid esters.

Safety Notes

  • Recognized as safe for cosmetic use by ingredient review experts.
  • Presents low comedogenic potential, suitable for pore-friendly products.

Frequently Asked Questions about Propylene Glycol Stearate SE

What does Propylene Glycol Stearate SE do in products?

It acts as a surfactant and emulsifier to blend oils and water stably, improving texture in lotions and cleansers.

Is it comedogenic?

It carries a comedogenic rating of 0, indicating low likelihood of pore clogging.

How safe is it for skin?

Safety evaluations rate it low hazard, suitable for general cosmetic use.