Moderate Cosmetic Ingredient GHS Classified

Aluminum Sulfate

INCI: ALUMINUM SULFATE

CAS Number
10043-01-3
Function
Astringent
Safety Rating
MODERATE

Regulatory Status

🇪🇺 EU Status permitted
🇺🇸 US Status permitted
US Notes Permitted in cosmetics; also FDA GRAS for food use (water treatment, food additive). Not an approved OTC antiperspirant active.

For full compliance data across 55 jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety (MoS)
adequate
Dermal Absorption
low
Sensitization
moderate

Calculate MoS for your specific formulation with the MoS Calculator.

GHS Hazard Classification

Globally Harmonized System classification per ECHA C&L inventory and ILO/WHO International Chemical Safety Cards.

Signal Word
WARNING
Pictograms
excl mark;warn
Hazard Statements
Causes serious eye irritation May cause respiratory irritation Toxic to aquatic life
Short-term Exposure Effects
The substance is severely irritating to the eyes, respiratory tract and gastrointestinal tract. The substance is mildly irritating to the skin.
Long-term Exposure Effects
The substance may have effects on the central nervous system. This may result in impaired functions.
Routes of Exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

Expert Verdict

More irritating than other aluminum salts due to pH concerns. Not suitable for damaged or broken skin; concentration-dependent irritation requires appropriate pH formulation.

⚠️
Concern Level: Moderate

Regulatory Flags

endocrine_disruptor fda_food_additive jecfa_concern

Frequently Asked Questions

Is Aluminum Sulfate safe in cosmetics?

More irritating than other aluminum salts due to pH concerns. Not suitable for damaged or broken skin; concentration-dependent irritation requires appropriate pH formulation. The EU classifies Aluminum Sulfate as "permitted". Safety rating: MODERATE.

Is Aluminum Sulfate allowed in the EU?

Aluminum Sulfate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Aluminum Sulfate do in cosmetics?

Aluminum Sulfate functions as: Astringent. It is classified as a cosmetic ingredient in our database. CAS number: 10043-01-3.

What is the Margin of Safety for Aluminum Sulfate?

adequate 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.

Is Aluminum Sulfate classified as hazardous under GHS?

Aluminum Sulfate carries a GHS signal word of "WARNING". Hazard statements: Causes serious eye irritation May cause respiratory irritation Toxic to aquatic life. This classification is based on the ILO/WHO International Chemical Safety Card and ECHA C&L inventory data. Note: GHS classification applies to the pure substance — at cosmetic use concentrations, hazard thresholds may not be met.

Compliance Tools

Check Aluminum Sulfate compliance across multiple jurisdictions:

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Ingredient Decoder
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82 Allergen Checker
Check for EU declarable fragrance allergens
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Substance Compliance
Check compliance across 55 jurisdictions
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MoS Calculator
Calculate Margin of Safety using SCCS methodology
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Heavy Metal Limits
Compare limits across jurisdictions

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