| Vegan? Yes | Vegetarian? Yes |
Classifications are made based on the available commercial supply of the ingredient, and are made based on the criteria on our classifications page.
Commercially available propanediol is vegan and vegetarian.
Propanediol is mainly produced from acrolein. Acrolein is produced from propene. Propene is produced from steam cracking, which means it's vegan. An alternative method for manufacturing propanediol is from ethylene oxide which is produced industrially from ethylene which is also produced from steam cracking.