Dilauryl Thiodipropionate
Reviewed by Kate · Last updated 18 Aug 2026
Also known as: Ester, Lauryl Alcohol, Thiodipropionic Acid
Offers antioxidant properties for skin | Plays a role in fading the look of dark spots
Addresses
EWG Safety Score
What Is Dilauryl Thiodipropionate?
Dilauryl thiodipropionate is a part synthetic, part plant-derived ester blend made from the fatty alcohol lauryl alcohol and the antioxidant thiodipropionic acid. Not surprisingly, it has antioxidant benefits on skin and, according to older research from Avon, may play a role in fading the appearance of discolorations.\n\nIt also works in cosmetics as a sequestering agent which helps keep ingredients in a formula from having unwanted interactions. As such, it also helps stabilize cosmetics.\n\nThis ingredient’s safety has been reviewed and deemed safe as used in cosmetics. Usage levels of dilauryl thiodipropionate are 1% or less, with low amounts in the range of 0.05% being standard since this amount is considered non-irritating and non-sensitizing to skin.
Benefits for Your Skin
Clinical Evidence & References
Published Research
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Journal of the American Academy of Dermatology, February 2007, Supplement 2, ePublication [https://www.jaad.org/article/S0190-9622(06)03294-4/fulltext]
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International Journal of Toxicology, May 2010, pages 137S–213S; and January/February 1992, pages 25–41 [https://journals.sagepub.com/doi/pdf/10.1177/1091581810373150] [https://journals.sagepub.com/doi/10.3109/10915819209141989]
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