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Colorant

PHYCOCYANIN

CAS 11016-15-2
84

Safety score · 0–100

Good

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

A vivid blue phycobiliprotein (CAS 11016-15-2) extracted from spirulina and similar algae, used as a natural colorant and mild antioxidant. Generally well tolerated with no significant documented topical concerns.

Skin benefits

  • Natural blue colorant from spirulina and related algae
  • Provides antioxidant activity
  • Water-soluble and easy to use in skincare
  • Biodegradable, renewable source

Known concerns

  • Sensitive to heat and pH — colour stability is limited
  • Theoretical allergenic potential for highly algae-sensitive individuals

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, so always read the physical product label and consult a healthcare professional for personal concerns.