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Updated: Jul 15, 2025

Blue-hazard-free Candlelight OLED
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HC Yellow 5.

Christina L Burnett1, Wilma F Bergfeld2, Donald V Belsito2

  • 1Cosmetic Ingredient Review Senior Scientific Analyst/Writer.

International Journal of Toxicology
|September 28, 2023
PubMed
Summary
This summary is machine-generated.

The Expert Panel for Cosmetic Ingredient Safety reaffirmed that HC Yellow 5 is safe for use in hair dyes. Updated safety reviews confirm its suitability for current product types and usage concentrations.

Keywords:
CosmeticsHC Yellow 5Safety

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Area of Science:

  • Cosmetic Science
  • Toxicology
  • Dermatology

Background:

  • The safety of cosmetic ingredients is periodically reassessed.
  • HC Yellow 5 has been previously evaluated as a hair dye ingredient.

Purpose of the Study:

  • To review updated safety information on HC Yellow 5.
  • To reassess its safety in hair dye formulations based on current usage patterns.

Main Methods:

  • Review of updated scientific literature and safety data.
  • Analysis of current product types, usage frequency, and ingredient concentrations.

Main Results:

  • Updated information did not alter the original safety assessment.
  • HC Yellow 5 remains safe under specified conditions of use.

Conclusions:

  • HC Yellow 5 is confirmed as safe for cosmetic use as a hair dye ingredient.
  • The current practices of use and concentrations are deemed safe.