OriginSynthesized from ethylparaben, a compound derived from p-hydroxybenzoic acid and ethanol through esterification. Potassium salt is formed by neutralizing ethylparaben with potassium hydroxide or potassium carbonate.
Potassium ethyl 4-oxidobenzoate
Formula
C9H9KO3
Mol. Weight
204.26
CAS #
36457-19-9
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
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.
Preserves Formula
Prevents microbial growth
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EU regulatory limit: 0.4% (as acid) for a single ester, 0.8% (as acid) for mixtures of esters. Source: EU Cosmetics Regulation (EC) 1223/2009, Annex V (Preservatives), Entry 12.
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