diisopropyl adipate
AKA: Diisopropyl Adipate (DIPA)
Plant-Derived Synthetic
Emollient
Solvent
Skin Conditioner
Clean
Diisopropyl adipate
Effective at 12.5%
CAS #
6938-94-9
Functions
Plasticiser
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.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Locks In Moisture
Traditional Use
A synthetic ester developed in the mid-20th century as a lightweight emollient and solvent. Created to replace heavier natural oils while providing spreadability and conditioning benefits in cosmetic formulations.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Concentration Guide
0.005%
25.0%
0%35%
Reported use
CIR reported use: 5-8 | 0.1-25 | 0.01-15 | 0.005-8
Regulatory Agencies
Skin Types
●all-skin-types, gentle
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR