Is Potassium Alum safe in cosmetics?
Potassium Alum has a safety rating of "MODERATE" in our database. EU status: permitted. US status: permitted.
MODERATE
Cosmetic Ingredient
Potassium Alum
INCI: POTASSIUM ALUM
Potassium Alum (CAS 10043-67-1 (anhydrous) / 7784-24-9 (dodecahydrate)) is a cosmetic cosmetic ingredient functioning as Astringent, deodorant active. EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database.
View industrial chemical safety profile for CAS 10043-67-1 (anhydrous) / 7784-24-9 (dodecahydrate) →
CAS Number
10043-67-1 (anhydrous) / 7784-24-9 (dodecahydrate)
View industrial chemical safety profile →
Function
Astringent, deodorant active
Editorial assessment
MODERATE
Preliminary editorial note — not a computed safety verdict.
Regulatory Status
EU EU Status
permitted
US US Status
permitted
US Notes
OTC active ingredient (astringent, listed as Alum, Potassium); CIR deferred to FDA review
For full compliance data across multiple jurisdictions, use the Substance Compliance tool.
Safety Data
Margin of Safety, dermal absorption, and sensitization profile summaries for Potassium Alum.
Calculate MoS for your specific formulation with the MoS Calculator.
Editorial summary
Preliminary editorial summary for Potassium Alum — not a computed safety verdict. See the sourced toxicological data above.
Frequently Asked Questions
Is Potassium Alum allowed in the EU?
Potassium Alum EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.
What does Potassium Alum do in cosmetics?
Potassium Alum functions as: Astringent, deodorant active. It is classified as a cosmetic ingredient in our database. CAS number: 10043-67-1 (anhydrous) / 7784-24-9 (dodecahydrate).
Compliance Tools
Check Potassium Alum compliance across multiple jurisdictions:
Ingredient Decoder
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Substance Compliance
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MoS Calculator
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Heavy Metal Limits
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CALCIUM CHLORIDE
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