Food use
Food-use source coverage is present in the current record.
The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.
- beauty
- cleaning
- pharma
Cysteine
CAS 1404190-35-7
Filler · Flavouring and nutrient · Food preservative
Concern score
Not assessed — no hazard data yet.
Why it's flagged
EPA CPDat observed this chemical in 45 composition records across product categories including Personal care.
Regulation
No restrictions found. Cysteine appears in these published regulatory listings.
- commercial_presence
- consumer_product_presence
- cpdat_category:beauty|cleaning
- currently_marketed_ndc
- definition_level:complete
- definition_type:primary
- inactive_ingredient_database
- ingredient_type:ingredient substance
USEPAcommercial use observedEPA CPDat observed this chemical in 45 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Processing aids not otherwise specified, Filler.
- EPA CPDat observed this chemical in 45 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient, Processing aids not otherwise specified, Filler.Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 25 active drug products and 34 total products.
- FDA NDC lists this ingredient in 25 active drug products and 34 total products.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →
Evidence
No graded sources yet for Cysteine. We publish evidence only once a source is linked and reviewed — this ingredient is in the catalog, but has not been assessed.
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Good fit
Fragrance avoidance
No fragrance-linked caution surfaced in the current profile.
This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.
Where it appears
Prevalence of Cysteine in our catalog (epa_cpdat).
Products
45
Brands
6
Personal care
Typical roles
FillerFlavouring and nutrientFood preservative
Found in these products
- Gala Appledisney · Plant Based Foods And BeveragesMinor
- pan castano ligth
- Bouillin style maisonKnorr
- Duncan hines, decadent cake mix, triple chocolateDuncan Hines · Plant Based Foods And BeveragesHigh
- Frog Fuel Power ProteinFrog Fuel · Dietary SupplementsHigh
- BurekNostja
- Wrap tortillaSalsalito · Plant Based Foods And BeveragesHigh
- Bakers Best, White BreadWise Woodworks · Plant Based Foods And BeveragesHigh
- Harina white flour tortilla mixSnacksCritical
- White flour tortilla mixPlant Based Foods And BeveragesHigh
- 6.25 Oz pizza mealBanquet · Plant Based Foods And BeveragesCritical
- 6 Submarine RollsFelix Roma Bakery · UndefinedModerate
- White flour tortilla mixSnacksCritical
- White flour tortilla mixPlant Based Foods And BeveragesCritical
- White flour tortilla mixPlant Based Foods And BeveragesCritical
- Artisan Style Plain BagelsEssential Everyday · UndefinedModerate
- Apple Caramel Cake MixDuncan Hines · UndefinedCritical
- BeigneComplimentCritical
- Busy baker, baked squares snack crackers, tangy cheddarBusy Baker · SnacksHigh
- Jumbo honey bun icedDuchess · Plant Based Foods And BeveragesHigh
- Plain bagelsSchmidt · Plant Based Foods And BeveragesHigh
- Sandwich BunsPaielli's · Plant Based Foods And BeveragesHigh
- Pepperoni & Jalapeño PizzaRed BaronCritical
- Odom'S Tennessee Pride, Quesadillas, Sausage Gravy, Odom'S Tennessee Pride, Quesadillas, Sausage GravyOdom's tennessee pride · Frozen FoodsCritical
