Sodium Benzoate

Sodium Benzoate 1
Sodium Benzoate 2
AKA: 532-32-1, Sobenate, Antimol, Benzoic acid, Sodium salt, Sodium;benzoate, Benzoate sodium, Benzoate of soda, Natrium benzoicum
Synthetic
Preservative
Clean
Benzoic acid, C6H5COOH, is a colourless crystalline solid and the simplest aromatic carboxylic acid. Benzoic acid occurs naturally free and bound as benzoic acid esters in many plant and animal species. Appreciable amounts have been found in most berries (around 0.05%). Cranberries contain as much as 300-1300 mg free benzoic acid per kg fruit. Benzoic acid is a fungistatic compound that is widely used as a food preservative. It often is conjugated to glycine in the liver and excreted as hippuric acid. Benzoic acid is a byproduct of phenylalanine metabolism in bacteria. It is also produced when gut bacteria process polyphenols (from ingested fruits or beverages).
Formula
C7H5NaO2
Mol. Weight
144.10
CAS #
532-32-1
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.
Anticorrosive
Prevents microbial growth
Provides scent
Prevents product degradation
EWG
2
CIR
Safe as used
Pregnancy
—
CIR Safety Findings
Not Phototoxic
ewg-2
medical-approval
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USA✔ permitted
EU✔ permitted
JAPAN✔ permitted
CANADA✔ permitted
Skin Types
●all-skin-types, gentle
Best For
General
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
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Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR