The Lab
Specimen No. 0177
AvoidSyntheticfood synthetic preservatives

Potassium Benzoate

E212

A synthetic preservative used in olives, caviar, and some beverages. Like sodium benzoate, it can form benzene under certain conditions.

low confidence
Researched July 7, 2026
Potassium Benzoate molecular structure
Specimen 0177Potassium Benzoate

Concerns

  • Has been associated with benzene formation under certain conditions, by the same mechanism as sodium benzoate

Regulatory flags

  • ⚑IARC Class: Gr1 (via benzene formation)
  • ⚑EDC Status: None
  • ⚑Regulatory: Same gap as sodium benzoate
  • ⚑Evidence Grade: A

Commonly found in

Olives, caviar, some beverages

Last researched: July 7, 2026

Research disclaimer: This rating is based on available peer-reviewed research and regulatory assessments at the time of publication. It is not medical advice. Consult a qualified professional for personal health or skin concerns.

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