Last reviewed May 2026 · 1 min read
Is Riboflavin-5-Phosphate Sodium vegan?
Also known as: E101a(ii)
E-number: E101a
Vegan
Suitable for a vegan diet.
Yes — Produced via microbial fermentation and synthetic phosphorylation.
01 · The basics
What is Riboflavin-5-Phosphate Sodium?
A highly soluble form of Vitamin B2.
02 · The source
Where it comes from
Produced via microbial fermentation and synthetic phosphorylation. 100% vegan.
Frequently asked
FAQ
Is it vegan?
Yes, derived from microbial fermentation.
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