Source dependent

The source or production method of E101 can vary, so it is not always vegan.

Names you may see on a label

리보플래빈рибофлавинРибофлавінRiboflavinVitamin B2B2-vitaminE101iRiboflavineVitamine B2Lactoflavineriboflavinevitamine B2OvoflavinVitamin B 2LaktoflavinVitamín GLactoflavinriboflavinvitamín B2Bacillus subtilis바이타민 B2Witamina B2Witamina GRyboflawinaLaktoflawinaRyboflawinyryboflawinaryboflawinywitamina B2Riboflavina

How to verify it

Look for a vegan certification or a manufacturer statement identifying the original source. The ingredient name alone does not settle it.