Oleic

AKA: Mosedipimodum, Acetylated diacylglycerol PLAG, PLAG, 1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol (PLAG), 1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol, Acetylated diglyceride, 1-Palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol, 221139-79-3, Ec-18
Synthetic
Humectant
Emollient
Skin Conditioner
Clean
9,12-Octadecadienoic acid (9Z,12Z)-, 1-[(acetyloxy)methyl]-2-[(1-oxohexadecyl)oxy]ethyl ester
Formula
C39H70O6
Mol. Weight
635.00
CAS #
221139-79-3
Form
Liquid
Functions
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
A monounsaturated omega-9 fatty acid naturally present in many oils used since ancient times (olive, avocado, argan). Its identification as a distinct compound occurred in the 19th century; widespread use in modern skincare formulation began in the mid-20th century.
EWG
1
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
ewg-1
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types, gentle
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory0 listings
🛡️Safety-assessed1 review
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR