What does the restriction note for SODIUM BISULFITE mean?

The restriction field for SODIUM BISULFITE reads: III/99 V/9. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What function does SODIUM BISULFITE serve in cosmetics?

According to the EU CosIng inventory, SODIUM BISULFITE carries the following function designation(s): ANTIOXIDANT, HAIR WAVING OR STRAIGHTENING, PRESERVATIVE, REDUCING.

What other records share CAS 7631-90-5?

CAS 7631-90-5 may appear across multiple EU annex records. The CAS lookup page shows all Annex II–VI entries sharing this identifier, useful for identifying cross-annex regulatory status of the same chemical substance.

InventoryRef 3774011/08/2020

SODIUM BISULFITE

Q: How do I check if my formula contains SODIUM BISULFITE?

Use the INCI Checker tool on CosIng Checker to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

Sodium hydrogensulphite

SODIUM BISULFITE is linked to 2 EU annex records on this page. Inventory note: III/99 V/9.

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Inventory details for SODIUM BISULFITE

INCI name

SODIUM BISULFITE

INN name

sodium bisulfite

Description

Sodium hydrogensulphite

Annex records for SODIUM BISULFITE

Annex III Restriction reference

Entry 99

Inorganic sulfites and bisulfites (12)

Annex V Restriction reference

Entry 9

SODIUM SULFITE / AMMONIUM BISULFITE / AMMONIUM SULFITE / POTASSIUM SULFITE / POTASSIUM hydrogen SUL…

CAS: 7757-83-7 / 10192-30-0 / 10196-04-0 / 10117-38-1 / 7773-03-7 / 7631-90-5 / 7681-57-4 / 16731-55-8

EC: 231-821-4 / 233-469-7 / 233-484-9 / 233-321-1 / 231-870-1 /231-548-0 / 231-673-0 / 240-795-3

Key data

CAS

7631-90-5

231-548-0

Restriction

III/99 V/9

Function

ANTIOXIDANT HAIR WAVING OR STRAIGHTENING PRESERVATIVE REDUCING

How SODIUM BISULFITE appears in the CosIng inventory

The CosIng inventory lists SODIUM BISULFITE as a cosmetic ingredient and this page links it to 2 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

SODIUM BISULFITE is also tagged with 4 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

SODIUM BISULFITE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for SODIUM BISULFITE reads: "III/99 V/9". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

According to the EU CosIng inventory, SODIUM BISULFITE carries the following function designation(s):

CAS 7631-90-5 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

View CAS records

Use the INCI Checker tool to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

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Source note for SODIUM BISULFITE

This page combines the CosIng inventory entry for SODIUM BISULFITE with 2 linked Annex II–VI records from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research SODIUM BISULFITE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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Tools & next steps

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