Is Ferrous Sulfate safe in cosmetics?
Ferrous Sulfate has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
Moderate
Cosmetic Ingredient
Ferrous Sulfate
INCI: FERROUS SULFATE
Ferrous Sulfate (CAS 7720-78-7 (anhydrous); 7782-63-0 (heptahydrate)) is a cosmetic cosmetic ingredient functioning as Cosmetic astringent, skin conditioning. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 7720-78-7 (anhydrous); 7782-63-0 (heptahydrate) →
Auto-generated CPSR Part A draft with source citations
CAS Number
7720-78-7 (anhydrous); 7782-63-0 (heptahydrate)
View industrial chemical safety profile →
Function
Cosmetic astringent, skin conditioning
Safety Rating
MODERATE
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
Permitted — FDA GRAS for food (21 CFR §184.1315); no cosmetic-specific ban
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Ferrous Sulfate.
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Expert safety assessment and concern-level summary for Ferrous Sulfate.
NOAEL Studies Summary
View details ->Public NOAEL study rows linked to Ferrous Sulfate by CAS number or substance name.
Studies
4
Lowest NOAEL
50 mg/kg bw/day
Highest NOAEL
3733 mg/kg bw/day
COSMOS_DB
Frequently Asked Questions
Is Ferrous Sulfate allowed in the EU?
Ferrous Sulfate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Ferrous Sulfate do in cosmetics?
Ferrous Sulfate functions as: Cosmetic astringent, skin conditioning. It is classified as a cosmetic ingredient in our database. CAS number: 7720-78-7 (anhydrous); 7782-63-0 (heptahydrate).
Compliance Tools
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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