Last reviewed May 2026 · 1 min read
Is Indigo Carmine vegan?
Also known as: FD&C Blue No. 2, Indigotine, E132
E-number: E132
Vegan
Suitable for a vegan diet.
Yes — Despite having 'carmine' in the name, it has absolutely nothing to do with crushed insects.
01 · The basics
What is Indigo Carmine?
A synthetic blue food dye used to achieve dark blue or purple shades in foods and medical diagnostics.
02 · The source
Where it comes from
Despite having 'carmine' in the name, it has absolutely nothing to do with crushed insects. It is a completely synthetic, vegan coal-tar dye.
03 · Alternatives
Best vegan alternatives
Spirulina extract
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Frequently asked
FAQ
Does Indigo Carmine contain crushed bugs?
No. Regular 'Carmine' (E120) is from bugs. 'Indigo Carmine' (E132) is 100% synthetic and vegan.
Is Blue 2 safe?
It is approved for use in the US and EU, though some advocacy groups recommend avoiding synthetic food dyes.
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Keep exploring
Related ingredients
Allura Red AC
A popular synthetic red food dye used to give foods and drinks a prominent red or pink color.
Tartrazine
A bright lemon-yellow synthetic food dye commonly used in processed foods, drinks, and medications.
Brilliant Blue FCF
A synthetic blue dye used in foods, cosmetics, and dietary supplements to achieve a vibrant blue hue.
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