Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Toxicological Studies
1 study endpoint found for Potassium Benzoate. NOAEL (No Observed Adverse Effect Level) values are used to calculate the Margin of Safety per SCCS methodology.
| Endpoint | Value | Route | Species | Study Type | Source |
|---|---|---|---|---|---|
| NOAEL | ca.750 mg/kg bw/day | oral | rat | oral | REACH |
Expert Verdict
Safe at ≤0.5% (as acid, Annex V/1a). pH-dependent (active <pH 5). Non-mutagenic, non-carcinogenic. Avoid combining with ascorbic acid/citric acid + metals/UV/heat due to benzene formation risk.
Regulatory Flags
Frequently Asked Questions
Is Potassium Benzoate safe in cosmetics?
Safe at ≤0.5% (as acid, Annex V/1a). pH-dependent (active <pH 5). Non-mutagenic, non-carcinogenic. Avoid combining with ascorbic acid/citric acid + metals/UV/heat due to benzene formation risk. The EU classifies Potassium Benzoate as "restricted". Safety rating: GOOD. 1 toxicological study endpoint(s) are available in our database.
Is Potassium Benzoate allowed in the EU?
Potassium Benzoate EU regulatory status: restricted. Maximum allowed concentration: 0.5% (as acid). This is based on EU Regulation 1223/2009 and its amendments.
What does Potassium Benzoate do in cosmetics?
Potassium Benzoate functions as: Preservative (Antimicrobial). It is classified as a Preservative in our database. CAS number: 582-25-2.
What is the Margin of Safety for Potassium Benzoate?
not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
What is the NOAEL for Potassium Benzoate?
The NOAEL (No Observed Adverse Effect Level) for Potassium Benzoate is ca.750 mg/kg bw/day based on a oral study via oral route in rat. Source: REACH.
Compliance Tools
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Related Ingredients
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