Dicetyl Phosphate
Reviewed by Emma · Last updated 18 Aug 2026
Also known as: Cetyl Alcohol, Phosphoric Acid
Works as a mild cleansing agent and emulsifier | Helps control the thickness of liquids
Addresses
EWG Safety Score
What Is Dicetyl Phosphate?
Dicetyl phosphate is made from portions from cetyl alcohol and phosphoric acid to form an ingredient that functions as surfactant and emulsifier. Its primary role is to help control the viscosity of liquid cosmetic formulas as well as provide sensory improvements. It has a natural affinity for skin due to its phosphoric acid component’s relation to the phospholipids (a type of fatty acid) present in skin. Dicetyl phosphate is typically part of a blend with fatty alcohols and other phosphate ingredients made with cetyl alcohol. These blends have a nice synergy while that helps stabilize formulas while also being gentle on skin. Dicetyl phosphate is considered safe as used in cosmetics. Usage levels in leave-on products range from 0.2–4% and 0.038–1% in rinse-off products. Amounts up to 80% are considered non-irritating on skin.
This ingredient may be plant- or animal-derived or synthetic ( uses the plant-derived form which comes from coconut).
Clinical Evidence & References
Published Research
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International Journal of Toxicology, September 2019, pages 12S–32S [URL]
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International Journal of Nanomedicine, February 2018, pages 831–842 [URL]
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International Journal of Pharmaceutics, August 2013, pages 311–320 [URL]
Frequently Asked Questions
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