Colorant
INDOCYANINE GREEN
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A near-infrared absorbing cyanine dye — long used as an injectable medical diagnostic agent. EU Annex IV-listed for cosmetic colorant use and one of the better-characterized dye molecules in regulation.
Function
Skin benefits
- Approved medical diagnostic dye with extensive safety record
- NIR absorber useful in specialty UV/imaging applications
- EU Annex IV listed colorant
Known concerns
- Iodine content can trigger allergy in iodide-sensitive individuals
- Specialty use rather than mainstream cosmetic dye
- Higher cost limits everyday formulation use
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related colorants
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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.