Is L-Cysteine Halal?

Doubtful

Avoid unless confirmed synthetic or plant-derived; human-hair and non-halal animal sources are impermissible to many.

✓ Last verified: Oct 2026 · Reviewed against IFANCA

What is L-Cysteine?

Dough conditioner — from human hair, poultry feathers, or synthetic.

SourceDough conditioner — from human hair, poultry feathers, or synthetic.

E-numberE920

Halal statusDoubtful

Is it halal or haram?

Avoid unless confirmed synthetic or plant-derived; human-hair and non-halal animal sources are impermissible to many.

Halal alternatives

Synthetic L-cysteine productsView →
Bread without dough conditionersView →

Sources

IFANCA

Disclaimer: This page reflects commonly held halal positions for general guidance and is not a fatwa. Scholars and madhhabs differ, and manufacturers change recipes and regional formulations. Always check the current product label and consult your own trusted authority.