E920 (L-Cysteine)

E920 (L-Cysteine) is rated Use Caution by CheckIt AI. An amino acid dough conditioner often derived from human hair or duck feathers. Generally safe.

Use Caution Preservatives

An amino acid dough conditioner often derived from human hair or duck feathers. Generally safe.

Read our complete guide: Food Preservatives: Safe vs Dangerous Guide

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Related in Preservatives

TBHQBHA (Butylated Hydroxyanisole)BHT (Butylated Hydroxytoluene)Sodium NitritePotassium BromateCitric AcidSodium BenzoateAzodicarbonamide

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📋 Cite This Data
APACheckIt AI. (2026). "What Is E920 (L-Cysteine)? Safety, Side Effects & Foods That Contain It (2026)". Climaverse PBC. Retrieved from https://getcheck.it/glossary/e920
MLA"What Is E920 (L-Cysteine)? Safety, Side Effects & Foods That Contain It (2026)." CheckIt AI, Climaverse PBC, 2026-04-17. https://getcheck.it/glossary/e920.
HTML Embed<a href="https://getcheck.it/glossary/e920">What Is E920 (L-Cysteine)? Safety, Side Effects & Foods That Contain It (2026) — CheckIt AI</a>
BibTeX@misc{checkit2026glossarye920, title = {What Is E920 (L-Cysteine)? Safety, Side Effects & Foods That Contain It (2026)}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/glossary/e920}, note = {Retrieved 2026-04-17} }