Skip to content

Colorant

PHYCOERYTHRIN

CAS 11016-17-4
82

Safety score · 0–100

Good

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

A red photosynthetic protein (CAS 11016-17-4) isolated from red algae, used as a natural colorant and mild antioxidant in cosmetic formulations. Generally well tolerated with minimal documented topical safety concerns.

Skin benefits

  • Natural red protein colorant from red algae
  • Provides antioxidant activity in formulations
  • 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 seafood-sensitive individuals

References

EU

EU CosIng database

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

Related colorants

82
Barium sulfate
Colorant
 82
CAPSANTHIN/CAPSORUBIN
Colorant
 82
CI 73900
Colorant
 82
CI 75120
Colorant
 82
CI 75170
Colorant
 82
CI 77004
Colorant
 82
GUANINE
Colorant
 82
LITHIUM/POTASSIUM/IRON/TITANIUM OXIDES
Colorant

Check your shelf

Find PHYCOERYTHRIN in your products.

Scan any cosmetic product with LuxSense to see if it contains PHYCOERYTHRIN 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, so always read the physical product label and consult a healthcare professional for personal concerns.