OriginDerived from undecylenic acid, a fatty acid typically sourced from castor oil or synthesized from petrochemicals. Synthesized through condensation of undecylenic acid with monoethanolamine to form an amide linkage.
N-(2-Hydroxyethyl)undec-10-enamide
Formula
C13H25NO2
Mol. Weight
227.34
CAS #
20545-92-0
Form
Liquid
Skin Types
●all-skin-types
Best For
General
Functions
Antimicrobial
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Antistatic
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.
Foam Boosting
Viscosity Controlling
Fights Bacteria
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 with qualifications (when formulated to be nonirritating; not in products where N-nitroso compounds may form)
Pregnancy
—
Concentration Guide
CIR's newest survey reports no concentration of use.
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