PEG-10 Phytosterol

PEG / Ethoxylated

What is PEG-10 Phytosterol?

PEG-10 Phytosterol is a synthetic derivative formed by attaching an average of 10 ethylene oxide units to phytosterols, which are natural steroid alcohols extracted from plant sources like vegetable oils and nuts. This ethoxylation process enhances its water solubility and surface-active properties. Primarily used in rinse-off products such as shampoos, body washes, and facial cleansers, as well as leave-on emulsions like moisturizers, it works by reducing the surface tension at the interface between oil and water phases. This allows for effective dispersion of ingredients, formation of stable micelles for dirt removal, and creation of uniform emulsions that prevent phase separation, ensuring products remain consistent and easy to apply during use.

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

Facilitates gentle cleansing by forming micelles that lift impurities without stripping skin.

Stabilizes oil-in-water emulsions for smooth, non-separating lotions and creams.

Promotes even distribution of active ingredients in formulations like micellar waters.

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 daily cleansers seeking effective yet mild surfactant action.
People with sensitivity to ethoxylated compounds or PEG derivatives.
Individuals applying emulsified moisturizers for consistent hydration delivery.
Individuals opting for completely natural or silicone-free formulations.
Those preferring non-comedogenic ingredients in rinse-off hair and body products.
Those experiencing reactions to plant-derived sterols.

Safety Notes

  • Rated moderate concern overall by environmental health databases, with focus on potential impurities minimized in quality products.
  • Deemed safe for cosmetic use by expert reviews when formulated below typical levels.

Frequently Asked Questions about PEG-10 Phytosterol

What does PEG-10 Phytosterol do in skincare?

It serves as a surfactant to cleanse and an emulsifier to mix oil and water for stable product textures.

Is PEG-10 Phytosterol comedogenic?

It carries a zero comedogenic rating, unlikely to clog pores.

Are there safety concerns with PEG-10 Phytosterol?

Expert panels find it safe as used, though select high-quality sources to limit impurities.