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Colorant

CI 77346

CAS 1345-16-0 Updated
38

Safety score · 0–100

Caution

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

About

A cobalt aluminate spinel blue pigment (CI 77346) listed in EU Annex IV with restrictions. Cobalt is a documented skin sensitizer and IARC Group 2B carcinogen, prompting genuine caution despite spinel stability.

Function

COLORANT

Skin benefits

  • Highly stable inorganic cobalt blue pigment with intense color
  • Heat- and light-stable spinel structure
  • Permitted under EU Annex IV with restrictions

Known concerns

  • Contains cobalt — IARC Group 2B and documented skin sensitizer
  • Restricted under EU REACH for several applications
  • Trace cobalt leaching potential in acidic conditions

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.