Also known as: E1520, PG, 1,2-propanediol, Propane-1,2-diol
| Source | Halal Ruling |
|---|---|
| Synthetic | Halal — petroleum-derived synthetic compound |
Propylene glycol is a synthetic compound derived from petroleum. It is used as a humectant, solvent, and preservative in food and cosmetics. It is always halal as it is entirely synthetic. It is sometimes confused with ethylene glycol (antifreeze), but propylene glycol is food-safe.
Listed as 'propylene glycol', 'E1520', or 'propylene glycol alginate (E405)'.