SODIUM BISULFITE is graded B** (Low Concern) by Expert·ING, based on COSING, FDA regulatory data. It is restricted under EU COSING — AnnexIII-CONCENTRATION-.

SODIUM BISULFITE

Safety grade: B**

This preservative is permitted in EU cosmetics up to a maximum concentration under EU Cosmetics Regulation (EC) No 1223/2009. To be sold legally in the EU or UK, a product must stay within this limit.

This ingredient protects cosmetic products from oxidation and microbial growth, helping to extend shelf life and maintain product stability, color, and efficacy.

Graded using: COSING, FDA.

Last verified: June 9, 2026

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