Ethylhexyl Isononanoate
Reviewed by Rosie · Last updated 18 Aug 2026
Also known as: Ethylhexyl Stearate, Ethylhexyl Hydroxystearate, Ethylhexyl Olivate, Ethylhexyl Palmitate
Isononanoic acid and 2-ethylhexyl alcohol ester | Hydrates skin through water loss prevention
Addresses
EWG Safety Score
What Is Ethylhexyl Isononanoate?
Ethylhexyl isononanoate is an ester of isononanoic acid and 2-ethylhexyl alcohol used in skin care for its emollient properties. This water-insoluble ester has a lighter skin feel than other emollient skin care ingredients, allowing for lighter, more spreadable formulas. It hydrates and softens skin by trapping moisture and preventing water loss. This ingredient is a clear, liquid raw material that appears in formulas in percentages between 0.02-75%. The CIR Expert Panel reviewed ethylhexyl isononanoate and deemed it safe for use in cosmetics at current formulaic concentrations.
Clinical Evidence & References
Published Research
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ULProspector, Accessed February 2023, Webpage [URL_NOT_FOUND]
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International Journal of Toxicology, September 2015, pages 5S-69S [URL_NOT_FOUND]
From the Clinic
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Ethyl Pelargonate
A lightweight ester that softens skin and adds subtle fragrance
Ethylhexyl Cocoate
A lightweight coconut-derived emollient that softens skin
Ethylhexyl Hydroxystearate
Skin-conditioning emollient that delivers a soft, smooth after feel
Ethylhexyl Isopalmitate
A lightweight synthetic emollient that softens and smooths the skin barrier
Ethylhexyl Olivate
Natural emollient of skin-conditioning fatty acids derived from olive oil Helps keep vital hydrating substances in skin from escaping
Ethylhexyl Palmitate
Helps soften and smooth skin Reduces moisture loss from skin’s upper layers
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