INCI · surfactant · CIR review pending · used in 5 products
Potassium Cetyl Phosphate
Potassium Cetyl Phosphate is the potassium salt of cetyl alcohol phosphate (1-hexadecanol, phosphate, potassium salt), with CAS numbers 84861-79-0 and 19035-79-1. It appears as a white to beige powder and functions primarily as an emulsifier and surfactant/cleansing agent according to CosIng. It is classified under the official CosIng functions of emulsifying and surfactant.
Evidence level
weakEWG score
—Comedogenic
—Category
surfactant● Benefits
Described as the "golden standard" emulsifier for stabilizing difficult oil-in-water emulsions. It is especially valued in sunscreen formulations, where it can boost SPF protection and increase the water-resistance of the formula.
emulsifyingspf-boostingwater-resistance
● Cautions




