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Is Alginic Acid vegetarian?

Alginic Acid

Vegetarian Vegetarian
Vegan Vegan

Alginic Acid is a natural polysaccharide extracted from brown seaweed (Phaeophyceae), used as a thickener, gelling agent, and stabiliser in food, pharmaceutical, and cosmetic products.

Also known as Acidum alginicum, Algin, Brown algae extract polysaccharide
INCI name Alginic Acid
E number E400
INS number 400
CAS number 9005-32-7
EC number 232-680-1
CosIng ID 31409
Last reviewed 22 April 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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