Last reviewed May 2026 · 1 min read
Is Brilliant Blue FCF vegan?
Also known as: Blue 1, FD&C Blue No. 1, Acid Blue 9
E-number: E133
Vegan
Suitable for a vegan diet.
Yes — It is manufactured from petrochemicals.
01 · The basics
What is Brilliant Blue FCF?
A synthetic blue dye used in foods, cosmetics, and dietary supplements to achieve a vibrant blue hue.
02 · The source
Where it comes from
It is manufactured from petrochemicals. No animal products are used in its synthesis.
03 · Alternatives
Best vegan alternatives
Spirulina extract
Check Price on AmazonButterfly pea flower powder
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Frequently asked
FAQ
Is Blue 1 vegan friendly?
From an ingredient standpoint, yes. It is completely synthetic and free from animal-derived substances.
Can I use natural blue coloring instead?
Yes! Spirulina is the most common vegan and natural alternative, though it is less stable in high heat compared to Blue 1.
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