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Sodium Benzoate
Sodium Benzoate
Salt of benzoic acid. Mild preservative effective at low pH; common in 'natural' formulations.
What it does
Sodium benzoate prevents fungal and yeast growth in low-pH water-based formulations. It needs the formula's pH to be below about 5 to work — at higher pH it loses efficacy. Often paired with potassium sorbate to cover both bacterial and fungal vectors. The natural-skincare market favors this combination because both ingredients are ECOCERT-permitted.
Pairs worth knowing
This page is public and indexed on purpose (unlike profiles and drops, which are unlisted) — it’s the citation behind shared ingredient cards, and it should be findable.
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