Tricetyl Phosphate
AKA “Trihexadecyl phosphate, 1-Hexadecanol, phosphate (3:1), tripalmityl phosphate, UNII-418WF120PG, 418WF120PG, DTXSID80273917, RefChem:190959, DTXCID50196407, TRICETYL PHOSPHATE [INCI]
Ingredient
Ingredient Facts
Tricetyl phosphate
AKA: Trihexadecyl phosphate, 1-Hexadecanol, Phosphate (3:1), Tripalmityl phosphate, UNII-418WF120PG, 418WF120PG, DTXSID80273917, RefChem:190959, DTXCID50196407, TRICETYL PHOSPHATE [INCI]
Ingredient · Film Forming · EWG: 4
Synthetic
Occlusive
Not Clean
The CIR Expert Panel concluded the following 28 alkyl phosphates are safe in the present practices of use and concentration in cosmetics when formulated to be non-irritating...Tricetyl Phosphate...
Formula
C48H99O4P
Mol. Weight
771.30
CAS #
68814-13-1
Form
Powder
See origin →
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Plasticiser
Creates protective layer
Adds flexibility
Traditional Use
A synthetic ingredient developed in 20th-century cosmetic chemistry. Used as an emollient, viscosity modifier, and conditioning agent in hair and skin care products.
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR