murphyPPG-33-Buteth-45
molecular structure · PubChem
AKA: 2-(1-butoxypropan-2-yloxy)ethanol, 2-((1-Butoxypropan-2-yl)oxy)ethan-1-ol
Synthetic
Skin Conditioner
Hair Care
Clean
OriginDerived from propylene glycol and butylene glycol, members of the polyol and ether alcohol chemical families. Synthesized through ethoxylation and condensation reactions linking polyether chains to alcohol compounds.
Oxirane, methyl-, polymer with oxirane, monobutyl ether
CAS #
9038-95-3, 9065-63-8
Form
Liquid
Skin Types
●all-skin-types
Best For
General
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.
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-assessed1 review →
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
1 study / 1 not irritating (CIR 726)
Concentration Guide
Leave-onNot reported
Rinse-off0.03%
0%50%100%
CIR reported use · 2015 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR