Acetyl Triethyl Citrate

AKA: 77-89-4, Acetyltriethyl citrate, 1, 2, 3-Propanetricarboxylic acid, Triethyl ester, 2-(Acetyloxy)-1, 3-propanetricarboxylic acid, Triethyl 2-acetoxypropane-1, 3-tricarboxylate
Synthetic
Occlusive
Fragrance
Chemical Exfoliant
Clean
Triethyl 2-acetoxy-1,2,3-propanetricarboxylate
Formula
C14H22O8
Mol. Weight
318.32
CAS #
77-89-4
Form
Liquid
State
Liquid
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Plasticiser
Moisturizing
Antimicrobial
Fights Acne
Creates protective layer
Provides scent
Adds flexibility
Traditional Use
A synthetic citrate ester developed as a plasticizer and solvent for cosmetics in the latter half of the 20th century. Used as a safer alternative to other chemical plasticizers in personal care products.
EWG
2
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
ewg-2
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR