Isostearyl Isostearate
Also known as: Ester, Isostearic Acid, Stearic Acid
Liquid emollient ester that helps prevent moisture loss | Improves the texture of makeup products such as lipstick
Addresses
EWG Safety Score
What Is Isostearyl Isostearate?
Isostearyl isostearate is a vegetable-derived or synthetic liquid emollient ester that helps prevent moisture loss, softens skin, improves an impaired barrier, and can enhance the texture of products such as lipstick. This emollient is also used as a binding agent to keep the dry ingredients in powder-based products together.
Isostearyl isostearate is stable and, unlike natural oils, not prone to rancidity. It has a more cosmetically elegant texture than mineral oil, so is sometimes used to replace this ingredient.
Usage levels of isostearyl isostearate in skin care are typically between 2–10% depending on formulary needs and other emollients present. It is considered safe and non-irritating as used in cosmetics.
Benefits for Your Skin
Clinical Evidence & References
Published Research
-
International Journal of Toxicology, September-October 2015, pages 5S–69S [https://journals.sagepub.com/doi/10.1177/1091581815594027]
-
International Journal of Cosmetic Science, December 2012, pages 502–512 [https://onlinelibrary.wiley.com/doi/10.1111/j.1468-2494.2012.00744.x]
-
International Journal of Cosmetic Science, August 2010, pages 304–312 [https://onlinelibrary.wiley.com/doi/10.1111/j.1468-2494.2010.00604.x]
Related Ingredients
Acrylates/Steareth-20 Methacrylate Copolymer
A synthetic polymer that blends steareth-20 with one or more forms of methacrylic acid | Used as a thickening agent in skin care and hair care products
Ammonium Acryloyldimethyltaurate/VP Copolymer
Synthetic polymer and film-forming agent | Serves to thicken cosmetic formulas
Ammonium Glycyrrhizate
Compound isolated from licorice plants | Used as a soothing, skin-conditioning agent in personal care products
Amorphophallus Konjac Root Powder
Why isn’t this ingredient rated?
Learn More About Skincare Ingredients
Explore our comprehensive ingredient glossary to understand what's in your products.
Browse All IngredientsShop Our Products
Find professional skincare solutions at Skintique.