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Colorant

CI 45370

CAS 4372-02-5 / 596-03-2 Updated
45

Safety score · 0–100

Moderate

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

About

CI 45370 — a halogenated xanthene dye (the fluorescein/eosin family) historically common in lip and cheek colors. Now significantly EU-restricted: phototoxicity and sensitisation flags require strict use conditions.

Skin benefits

  • Bright pink/red coloration in cosmetics under regulated use

Known concerns

  • Halogenated xanthene with phototoxicity potential
  • EU Annex IV restrictions and warning labelling required
  • Skin sensitisation reports in fluorescein derivatives

References

EU

EU CosIng database

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

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Check your shelf

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Scan any cosmetic product with LuxSense to see if it contains CI 45370 and get a full ingredient breakdown with safety scores.

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.