Hydrogenated Polydecene

Hydrogenated Polydecene molecular structure
molecular structure · PubChem
AKA: Polydecene hydrogenated
Synthetic
Emollient
Fragrance
Solvent
Skin Conditioner
Hair Care
Clean
OriginDerived from polydecene, a synthetic hydrocarbon polymer belonging to the alkene chemical family. Produced through catalytic hydrogenation of polydecene to increase stability and reduce unsaturation.
1-Decene, homopolymer, hydrogenated
CAS #
68037-01-4
Form
Oil
Skin Types
●all-skin-types, gentle
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
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
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.
EWG
2
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
2 studies / 2 not irritating (CIR 687)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 687)
Mixed Eye Irritation Results
1 study / 1 mixed / reactions moderate (CIR 687)
Concentration Guide
Leave-on0.035–59%
Rinse-off0.005–49%
0%50%100%
CIR reported use · 2013 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR