EWG Safety Score
What Is Isononyl Isononanoate?
Isononyl isononanoate is a low molecular weight synthetic ester that functions as an emollient skin-softening agent. It is derived from the esters of nonanoic acid, a 9-carbon fatty acid which occurs naturally in cocoa oil and lavender oil (along with many other plant oils). It is typically used in cosmetics in concentrations between 2% - 10%.\n\nThe Cosmetic Ingredient Review Expert Panel has determined that isononyl isononanoate is safe in its current use and concentration in cosmetic products. It found that in concentrations of less than 12%, nonanoic acid is not a skin irritant.
Clinical Evidence & References
Published Research
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Journal of Olio Science, December 2020, pages 1627-1639 Journal of Olio Science, 2020
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International Journal of Toxicology, December 2011, pages 228S-269-S International Journal of Toxicology, 2011
From the Clinic
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Isodecyl Neopentanoate
Synthetic emollient that also helps product flow | Delivers silicone-like esthetics with a light, dry finish
Isodecyl Salicylate
Ester of decyl alcohol + salicylic acid | Skin conditioning ingredient
Isomerized Jojoba Oil
A lightweight oil derived from jojoba that conditions and softens the skin
Isopropyl Jojobate
A lightweight ester that conditions skin without leaving a greasy residue
Isopropyl Lanolate
Derived from lanolin, it is used in cosmetics as a texture
Isopropyl Myristate
Texture enhancer and emollient
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