A preservative. It protects the formula from bacteria and mold and does not affect skin in the finished product.
Topical application
BLimited evidence. One RCT or several controlled studies with limitations.
A functional preservative. Safe at cosmetic levels.
Potassium Benzoate is the potassium salt of benzoic acid, a preservative. INCI: Potassium Benzoate. In a formula it protects the product from bacteria, yeast, and mold, extending shelf life. It works actively in an acidic environment, so it is used in low-pH formulas. It is a functional component of the preservation system, not a skincare active. Without preservatives, water-containing cosmetics spoil quickly and become unsafe. Pregnancy safety. At permitted concentrations topical use is systemically negligible, with no evidence of harm. It can be used during pregnancy and lactation. Tolerance. At working concentrations, irritation and allergen potential are low.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Potassium Benzoate is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Potassium Benzoate suits: normal, dry, combination, oily, sensitive.
A preservative.
The INCI name is Potassium Benzoate. It may also appear as: Калия бензоат.
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