OriginSynthesized from p-hydroxybenzoic acid, a compound derived from petroleum or plant-based sources. Produced through esterification of p-hydroxybenzoic acid with potassium hydroxide.
Potassium methyl 4-oxidobenzoate
Formula
C8H7KO3
Mol. Weight
190.24
CAS #
26112-07-2
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-reviewed1 paper →
⚖️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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