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Is Erythorbic Acid vegetarian?

Erythorbic Acid

Vegetarian Vegetarian
Vegan Vegan

Erythorbic acid is a stereoisomer of ascorbic acid used as an antioxidant in food processing. Despite being named similarly to ascorbic acid, it is commercially produced by microbial fermentation of sucrose or glucose, not extracted from plant sources.

Also known as 2,3-Didehydro-D-erythro-hexono-1,4-lactone, D-Araboascorbic acid, D-erythro-hex-2-enonic acid, gamma-lactone, D-Isoascorbic acid, Isoascorbic acid
INCI name Erythorbic Acid
E number E315
INS number 315
CAS number 89-65-6
EC number 201-928-0
CosIng ID 33791
Last reviewed 16 April 2026

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

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