Castor Oil Phosphate
INCI: CASTOR OIL PHOSPHATE
Reviewed by Kate · Last updated 18 Aug 2026
What Is Castor Oil Phosphate?
Castor Oil Phosphate is a complex mixture of esters of Ricinus Communis (Castor) Oil and phosphoric acid.
Its declared cosmetic functions are anticaking and emulsion stabilising.
Source: European Commission CosIng inventory.
From the Clinic
Not sure what your skin actually needs?
Two minutes, a few questions, and we’ll point you at what matters — no guesswork.
Take the skin quizRelated Ingredients
Aminomethyl Propanol
Used to adjust and control the pH of a formulation
Decyloxazolidinone
Functions as a preservative
Disodium Phosphate
“Behind-the-scenes” ingredient commonly used as a buffering agent/pH adjuster
Disteardimonium Hectorite
Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Versatile polymer widely used in skin care and makeup
Hypochlorous Acid
Naturally occurring oxidizing ingredient
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.