riboflavin

Classifications are made based on the available commercial supply of the ingredient, and are made based on the criteria on our classifications page.

Riboflavin, also known as vitamin B2, is almost exclusively vegan as it is not cost effective to source it from animals. There is at least one small supplement manufacturer mentioned in the VRG article below which still sources it from beef, but all industrial suppliers they contacted produce it synthetically or from fermentation.

Sources

1. Hohmann, H.-P., Bretzel, W., Hans, M., Friedel, A., Litta, G., Lehmann, M., Kurth, R., Paust, J., & Haehnlein, W. (2020). Vitamins, 7. VitaminB₂(Riboflavin). Ullmann’s Encyclopedia of Industrial Chemistry, 1–12. Portico.
   https://doi.org/10.1002/14356007.t27_t01
2. https://www.veganpeace.com/ingredients/ingredients.htm#Vitamin_B2
3. https://www.vrg.org/blog/2012/01/19/riboflavin-vitamin-b-2-and-niacin-vitamin-b-3-typically-vegan/