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MERCAPTOPHENYLBORONIC ACID

CAS 237429-33-3 Updated
35

Safety score · 0–100

Caution

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

About

A reactive thiol-bearing phenylboronic acid used mainly in lab analytical chemistry. No cosmetic safety dossier exists, and its combined thiol + boronic-acid reactivity makes it a poor topical candidate.

Function

NOT REPORTED

Skin benefits

  • Niche analytical/research utility
  • Possible boron-mediated diol-binding chemistry

Known concerns

  • Boronic acid + free thiol = high reactivity, potential sensitization
  • No CIR/SCCS or industry safety dossier
  • Not a standard cosmetic-listed ingredient
  • Possible genotoxicity alerts

References

EU

EU CosIng database

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

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