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Antiperspirant active

ALUMINUM ZIRCONIUM TETRACHLOROHYDRATE

CAS 98106-52-6
55

Safety score · 0–100

Moderate

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

An aluminum-zirconium complex used as a strong antiperspirant active to block sweat ducts. It is restricted in EU aerosol products and remains under safety review for chronic aluminum exposure.

Function

ANTIPERSPIRANT, ASTRINGENT, DEODORANT

Skin benefits

  • Highly effective antiperspirant active
  • Reduces underarm wetness and odor
  • FDA-approved OTC antiperspirant ingredient in US

Known concerns

  • Banned in EU aerosol antiperspirants since 2023 (Regulation 2022/63)
  • Restricted aluminum exposure concerns
  • Can irritate broken skin and freshly shaved areas
  • Long-term safety debate continues

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related antiperspirant actives

55
ALUMINUM SESQUICHLOROHYDREX PG
Antiperspirant active

Same plant / compound family

58
ALUMINUM ZIRCONIUM OCTACHLOROHYDRATE
Antiperspirant
 55
ALUMINUM ZIRCONIUM OCTACHLOROHYDREX GLY
Antiperspirant
 50
ALUMINUM ZIRCONIUM PENTACHLOROHYDRATE
Antimicrobial
 46
ALUMINUM ZIRCONIUM PENTACHLOROHYDREX GLY
Antimicrobial
 55
ALUMINUM ZIRCONIUM TETRACHLOROHYDREX GLY
Other
 55
ALUMINUM ZIRCONIUM TETRACHLOROHYDREX PEG
Antiperspirant

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.