AKA: 84471-25-0, Undec-10-enoic acid, Compound with 2, 2''-nitrilotriethanol (1:1), 10-Undecenoic acid, Compd. with 2, 2''-nitrilotris(ethanol) (1:1)
Plant-Derived
Preservative
Cleanser
Not Clean
OriginDerived from undecylenic acid, a naturally occurring fatty acid found in castor oil and synthesized through chemical processes. Produced by esterifying undecylenic acid with triethanolamine through acid-base reaction.
Undec-10-enoic acid, compound with 2,2',2''-nitrilotriethanol (1:1) (salt)
Formula
C17H35NO5
Mol. Weight
333.50
CAS #
84471-25-0
Form
Liquid
Skin Types
●all-skin-types
Best For
Acne
Pregnancy & Breastfeeding Safe
Yes
Functions
Preservative
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Preserves Formula
Cleansing Surfactant
Lifts away dirt and oil
Prevents microbial growth
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
Concentration Guide
0%50%100%
Reg. limit 0.2%
CIR lists it as not reported to be in use.
CIR · report published 2013
EU regulatory limit: 0.2%. Source: EU Cosmetics Regulation (EC) 1223/2009, Annex V (Preservatives), Entry 18.
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