Is E405 halal or haram?
Propylene glycol alginate · Thickener
E405 (Propylene glycol alginate) is generally classified as halal. Seaweed-derived alginate, esterified.
What is E405?
E405, listed on labels as Propylene glycol alginate, is a thickener that gives products a richer, more viscous texture. You'll most often find it in packaged and processed foods.
Is E405 halal? The verdict
Good news — you can treat E405 as halal. Seaweed-derived alginate, esterified. The additive itself needs no special certification. Keep in mind the finished product can still contain other ingredients that aren't halal, so always read the full list.
How to check E405 on a label
If you see E405 (or "Propylene glycol alginate") in an ingredient list, no further checking is needed for this additive — focus your attention on meat, animal fats, gelatin and flavourings instead.
Other names & label terms to scan for
Propylene glycol alginatePGAINS 405E405
Bottom line
E405 is halal. Safe to consume as far as this additive is concerned.
Stop guessing in the aisle
Halal Food AI flags E405 and every other suspect or not-halal additive automatically — just scan the barcode or snap the ingredient list. Plain-language verdicts, 25+ languages.