Is Sodium Bisulfite safe in cosmetics?
Sodium Bisulfite has a safety rating of "GOOD" in our database. EU status: restricted. US status: permitted.
GOOD
Cosmetic Ingredient
Sodium Bisulfite
INCI: SODIUM BISULFITE
Sodium Bisulfite (CAS 7631-90-5) is a cosmetic cosmetic ingredient functioning as Preservative, reducing agent, hair waving/straightening agent. EU Regulation 1223/2009 status: restricted, max 0.2%. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in pharmaceutical data.
Function
Preservative, reducing agent, hair waving/straightening agent
Editorial assessment
GOOD
Preliminary editorial note — not a computed safety verdict.
Chemistry & Identifiers
IUPAC Name
sodium hydrogen sulfite
InChIKey
DWAQJAXMDSEUJJ-UHFFFAOYSA-M
Regulatory Status
EU EU Status
restricted
EU Max Conc.
0.2%
US US Status
permitted
US Notes
Permitted; GRAS for food use; listed in VCRP for cosmetic use; no specific restriction under current FDA cosmetic rules
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Sodium Bisulfite.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Sodium Bisulfite — not a computed safety verdict. See the sourced toxicological data above.
Regulatory Flags
preservative
epa_safer_alternative
fda_food_additive
Cross-Vertical Safety Context
Same-CAS public records found in pharmaceutical data.
SOURCE
ChEMBL / DrugCentral / FAERS
DB_PHARMA CAS match
Pharmaceutical Data
Same-CAS rows from the pharmaceutical spoke database.
Compound
SODIUM BISULFITE
ChEMBL ID
CHEMBL1689285
Max Phase
-1
Frequently Asked Questions
Is Sodium Bisulfite allowed in the EU?
Sodium Bisulfite EU regulatory status: restricted. Maximum allowed concentration: 0.2%. This is based on EU Regulation 1223/2009 and its amendments.
What does Sodium Bisulfite do in cosmetics?
Sodium Bisulfite functions as: Preservative, reducing agent, hair waving/straightening agent. It is classified as a cosmetic ingredient in our database. CAS number: 7631-90-5.
Is Sodium Bisulfite used outside cosmetics?
Sodium Bisulfite also appears in pharmaceutical data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.
Compliance Tools
Check Sodium Bisulfite compliance across multiple jurisdictions:
Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
Substance Compliance
Check compliance across multiple jurisdictions
MoS Calculator
Calculate Margin of Safety using SCCS methodology
Heavy Metal Limits
Compare limits across jurisdictions
Is Sodium Bisulfite in Your Products?
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Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Sodium Bisulfite in your formulation.