PEG-10 Phytosterol
Reviewed by Kate · Last updated 18 Aug 2026
Also known as: PEG-10 soy sterol, PEG-10 rapeseed sterol, Cholesterol
Used in skin care products as a cleansing agent/emulsifier | Plays a role in enhancing the overall texture of a formula
Addresses
EWG Safety Score
What Is PEG-10 Phytosterol?
PEG-10 phytosterol is a blend of synthetic humectant and solvent PEG-10 with natural skin-conditioning plant sterols from rapeseed (canola) or soy. This ingredient is used in skin care as a cleansing agent/emulsifier and plays a role in enhancing the overall texture of a formula.
PEG-10 phytosterol also goes by the name PEG-10 soy sterol or PEG-10 rapeseed sterol, depending on how it’s sourced. While this ingredient is most commonly used for its functions mentioned above, research shows soy phytosterols in particular can help rejuvenate aging skin by keeping it pliant and supple—a nice side benefit to have!
As a class of ingredients, plant-based phytosterols and PEG compounds are generally recognized as safe for use in cosmetic products.
Clinical Evidence & References
Published Research
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The Cosmetic Ingredient Review, December 2014, ePublication [URL_NOT_FOUND]
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International Journal of Toxicology, 2004, pages 23-47 [URL_NOT_FOUND]
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PEG-10 Isostearate
A synthetic emulsifier that helps blend oil and water in skincare formulations
PEG-10 Rapeseed Sterol
Hybrid blend of synthetic and plant-derived ingredients | Contains fatty acid from the rapeseed plant
PEG-100 Hydrogenated Castor Oil
A plant-derived emulsifier that helps oils and water blend seamlessly in formulations
PEG-11 Babassu Glycerides
A plant-derived emulsifier that helps blend oil and water in skincare formulations
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