Not yet rated
L-Cystine
At a Glance
Quick Answer
L-Cystine (E921) is rated "Not Yet Rated" according to current evidence. It is approved in the EU and approved in the US. This additive is currently approved in all four major markets (US, EU, UK, Japan).
On This Page
What is L-Cystine?
Oxidized form of cysteine. Not in EU additive list
Regulatory Status by Country
🇺🇸 United StatesUS
Check FDA database🇪🇺 European UnionEU
NOT APPROVEDOxidized form of cysteine. Not in EU additive list
🇬🇧 United KingdomUK
Same as EU pre-BrexitUK retained EU food additive regulations post-Brexit with some modifications
🇯🇵 Japan
Check MHLW database🇨🇦 CanadaCA
Check Health CanadaVerify with Health Canada's permitted food additives list.
🇦🇺 Australia/NZAU/NZ
Likely restrictedMay follow EU restrictions. Check FSANZ Schedule 15.
🇮🇳 India
May be restrictedCheck FSSAI regulations. India follows Codex Alimentarius guidelines.
🇰🇷 South KoreaKR
May be restrictedCheck MFDS (Ministry of Food and Drug Safety).
🇧🇷 Brazil
Status variesCheck ANVISA (National Health Surveillance Agency).
🇨🇳 China
May be restrictedChina has independent standards. Check GB 2760.
Note: Canada, Australia/NZ, India, South Korea, Brazil, and China statuses are inferred from international regulatory patterns. Always verify with the relevant national authority.
Expert Analysis
L-Cystine is classified as a flour treatment agent in the food additive regulatory framework. This additive is approved across multiple major regulatory markets worldwide, suggesting broad scientific consensus on its safety profile. As with all food additives, moderation is key. Consult healthcare professionals for personalized dietary advice.
Is L-Cystine safe?
L-Cystine has a safety rating of "Not Yet Rated". Not yet rated
Is L-Cystine vegan?
L-Cystine is generally considered vegan-friendly, though sourcing may vary.
Is L-Cystine banned in Europe?
No, L-Cystine is NOT APPROVED in the EU.
What is L-Cystine made from?
Oxidized form of cysteine. Not in EU additive list
Weekly Ingredient Alert
Get weekly updates on food additive news, regulatory changes, and safety alerts.
Recommended Reading
Frequently Asked Questions
Is L-Cystine safe?
Is L-Cystine banned in any country?
What is L-Cystine used for?
Often Found Together
Other additives with the same safety rating from different categories
Related Searches
People also ask:
Want Additive-Free Food?
Explore organic food delivery services that prioritize clean ingredients.
Explore Clean Food Options →