Glossary › Ingredients
L-cysteine (E920)
Doubtful (mushbooh)
Often made from hair or feathers. Needs a halal source.
L-cysteine is a dough improver. It can be made from feathers, hair or synthetically. Human hair or pig bristles would be a problem, so a halal source matters.
Where to verify
Malaysian halal authority. Its Halal Malaysia portal lists certified products and recognised foreign certifiers.Open JAKIM ↗
Always confirm on the certifier's own website. This page is general education, not a fatwa.
Check a product for l-cysteine (e920)Find halal businessesRead the Learn hub
Related
Pork and pig derivativesAlcoholic drinksBloodGelatineEmulsifiers and E471Glycerin and glycerol (E422)Carmine and cochineal (E120)Shellac and confectioner's glaze (E904)Rennet and cheeseEnzymesAnimal fat, tallow and shorteningCollagen, bone and isinglassNatural flavours and flavouringsEthanol and trace alcoholVanilla extractStearic acid and magnesium stearate (E570, E572)E-numbers and additives