Propylene Glycol Behenate
molecular structure · PubChem
AKA: Sunsoft 25BD, Propylene glycol monodocosanoate, Docosanoic acid, Monoester with 1, 2-propanediol, 27923-61-1, PB 100
Synthetic
Cleanser
Skin Conditioner
Not Clean
Docosanoic acid, 2-hydroxypropyl ester
Effective at 1.0%
Formula
C25H52O4
Mol. Weight
416.70
CAS #
27923-61-1, 100214-87-7
Form
Liquid
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Locks in moisture
Traditional Use
Synthesized in the late 20th century as a propylene glycol ester of behenic acid (a long-chain fatty acid). Developed for use in skincare and cosmetics as an emollient and thickening agent with improved stability compared to natural waxes.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Restricted By
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
9.9e-05%
2.0%
0%14%
Reported use
CIR reported use: 0.000099-2
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR