Sodium Benzoate
Sodium salt of benzoic acid, food preservative E211. Suppresses yeast and mold growth at acidic pH, often pairs with potassium sorbate.
Evidence by route
Topical application
CWeak evidence. In vitro data, open-label studies, or expert consensus.
Mild preservative with a long food and cosmetic safety record. Works only in acidic media, so often complements other systems.
Tolerability and safety
Irritation potential
LowAllergen risk
LowPregnancy
SafeSkin types
Suitable for
NormalDryOilyCombinationSensitive
Frequently asked questions
Is Sodium Benzoate safe during pregnancy?
Sodium Benzoate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Sodium Benzoate for?
Sodium Benzoate suits: normal, dry, oily, combination, sensitive.