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Thickener

ALGINIC ACID

CAS 9005-32-7 Updated
85

Safety score · 0–100

Good

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

About

Alginic acid — a brown-seaweed polysaccharide used as a thickener, film former and hydrating ingredient. Well established as safe in food and cosmetics.

Function

BINDINGSKIN CONDITIONINGVISCOSITY CONTROLLING

Skin benefits

  • Natural seaweed thickener
  • Film-forming on skin
  • Hydrating polysaccharide

Known concerns

  • Possible iodine traces
  • Rarely sticky on application
  • Limited concern at cosmetic levels

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