Ingredient · Updated

PEG-40 Hydrogenated Castor Oil

Neutral in 3

Found in 3 products

What is PEG-40 Hydrogenated Castor Oil?

PEG-40 Hydrogenated Castor Oil is a synthetic compound derived from castor oil and polyethylene glycol. It's created by modifying castor oil with hydrogenation and attaching polyethylene glycol chains, which helps it mix better with water.

This ingredient is used primarily as an emulsifier and surfactant in skin care products, allowing water and oil-based ingredients to blend smoothly. Some studies suggest it may cause skin irritation in sensitive individuals, but generally it's considered safe for topical use.

When you see PEG-40 Hydrogenated Castor Oil on a label, it indicates an intention to create a stable, homogeneous product. This ingredient also helps improve texture and feel in creams and lotions.

Commonly found in: creams, lotions, moisturizers, shampoos, conditioners

What to watch

  • May cause skin irritation in sensitive individuals.

Benefits

  • Improves texture and stability in skin care formulations.
FDA

PEG-40 Hydrogenated Castor Oil is generally recognized as safe for topical use by the FDA.

Research

Studies show it can cause skin irritation in some people, but is otherwise considered non-toxic in typical use concentrations.

Vegan

Derived from castor oil, a plant-based source, making it suitable for vegan products.

Sources: FDA Overview of Cosmetic Ingredients · Assessment of PEG Compounds in Dermatological Use

Scout's take

PEG-40 hydrogenated castor oil is an emulsifier and surfactant that helps to mix oil and water-based ingredients. It is generally considered safe for use in cosmetics. However, there is a potential for contamination with harmful impurities during manufacturing.

The case against

Possible contamination with ethylene oxide or 1,4-dioxane, which are harmful impurities.

from the analysis of Pampers Pampers Ultra Clean Baby Wipes - 624ct

Potential impurities from ethoxylation process.

from the analysis of Pampers Sensitive

The case for

Improves the texture and consistency of the product, aiding in even application.

from the analysis of Pampers Pampers Ultra Clean Baby Wipes - 624ct

Improves texture and consistency of products.

from the analysis of Pampers Sensitive

More from Scout's analyses

PEG-40 hydrogenated castor oil is an emulsifier that helps blend oil and water-based ingredients. It is generally considered safe but may contain impurities from the ethoxylation process. It improves product texture and consistency.

from the analysis of Pampers Sensitive

PEG-modified plant oil emulsifier; possible 1,4-dioxane contamination.

from the analysis of The Ordinary Glycolic Acid 7% Exfoliating Toner

All 3 products with PEG-40 Hydrogenated Castor Oil

Where PEG-40 Hydrogenated Castor Oil shows up

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