OriginSynthesized from propylene glycol and butanol through chemical condensation and esterification reactions. Produced via catalytic synthesis to create a stable polyol humectant compound for cosmetic formulation.
1,3-Propanediol, 2 –Butyl-2-Ethyl
Formula
C9H20O2
Mol. Weight
160.25
CAS #
115-84-4
Form
Liquid
State
Other Solid
Skin Types
●all-skin-types
Best For
Dehydration
Pregnancy & Breastfeeding Safe
Yes
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.
Locks In Moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 731)
Mixed Skin Irritation Results
1 study / 1 mixed / reactions mild (CIR 731)
Eye Irritant in Testing
2 studies / 2 irritating / reactions severe (CIR 731)
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