AKA: Neosolue-DEPD, Dineopentanoic acid 2, 4-diethyl-1, 5-pentanediol, 762268-78-0, Propanoic acid, 2, 5-pentanediyl ester, 4-((2, 2-dimethyl-1-oxopropoxy)methyl)-2-ethylhexyl ester, DIETHYLPENTANEDIOL DINEOPENTANOATE [INCI]
WHAT IS IT? Synthetic
Skin Conditioner
Hair Care
Not Clean
Origin Synthesized from diethylpentanediol and neopentanoic acid as starting materials within the ester chemical family. Produced through esterification reaction, combining the diol with neopentanoic acid under catalytic conditions.
2,4-Diethyl-1,5-pentanediyl di-(3,3-dimethylpentanoate)
WHAT’S IT DO? Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
CAN I TRUST THIS? The paper trail
🔬 Peer-reviewed none on file
🛡️ Safety-assessed 1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
IS IT CLEAN? CIR Safety Findings
Not a Skin Irritant
2 studies / 2 not irritating (CIR 735)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 735)
Eye Irritant in Testing
1 study / 1 irritating / reactions minimal (CIR 735)
Concentration Guide
0% 50% 100%
CIR reported use · 2016 survey
Regulatory Status
JAPAN ⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
murphy