murphyTrehalose Undecylenoate
AKA: Trehalose Undecylenate
Synthetic
Cleanser
Skin Conditioner
Hair Care
Not Clean
OriginSynthesized from trehalose, a naturally occurring disaccharide, and undecylenic acid, a fatty acid. Produced through esterification of trehalose with undecylenic acid under catalytic conditions.
Trehalose Undecylenoate is the ester formed by the reaction of Trehalose with Undecylenic Acid
CAS #
-
Form
Liquid
Skin Types
●all-skin-types
Best For
Acne
Pregnancy & Breastfeeding Safe
Yes
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Hair 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.
Surfactant Cleansing
Moisturizing
Strengthens Barrier
Anti-Inflammatory
Removes dirt and impurities
Lifts away dirt and oil
Softens and detangles hair
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
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer (CIR report on the ingredient group)
CIR report statement covering this group of ingredients / not tested individually (CIR 721)
Concentration Guide
Leave-on0.05%
Rinse-off0.0005–0.25%
0%50%100%
CIR reported use · 2016 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR