Ingredient

L-cysteine Monohydrochloride

Auto-generated content. This description was generated automatically and is pending editorial review. Inaccuracies are possible. Found a mistake? Contact us.

Source
Animal-derived
Allergen
No
Role in food
Manufacturers use L-cysteine monohydrochloride as a dough conditioner in baked goods, helping to improve …

What it is

L-cysteine monohydrochloride is a form of the amino acid cysteine, which is a building block of protein. It is often produced industrially by extracting it from animal sources, such as poultry feathers or hog hair, or through fermentation.

Why it's used

Manufacturers use L-cysteine monohydrochloride as a dough conditioner in baked goods, helping to improve texture and reduce mixing time. It can also act as a flavor enhancer, particularly in savory products.

Health notes

In the United States, L-cysteine is generally recognized as safe (GRAS) by the FDA for use in food. International bodies like JECFA have evaluated it. It is typically consumed in small amounts as part of a varied diet.

Allergen info

L-cysteine is not derived from any of the 9 FDA major allergens. It does not contain gluten.

Products containing L-cysteine Monohydrochloride

Compare products →
SHURFINE White Flour Tortilla Mix, White Flour Flours & Corn Meal 390kcal 7.3Protein 12.2Fat 63.4Carbs Beaver Street Fisheries Inc. Crisp & Crunchy Sea Strip Fish Unprepared/Unprocessed High in cholesterol — 37% DV per serving 102kcal 18.6Protein 0.9Fat 0Carbs Beaver Street Fisheries Inc. Crispy/Crunchy Sea Strips Fish Unprepared/Unprocessed 134kcal 14.3Protein 1.3Fat 17.0Carbs Brakebush Brothers Chicken, Fully Cooked Tater Chip Breast Pattie Meat/Poultry/Other Animals Prepared/Processed High in sodium — 28% DV per serving 234kcal 11.7Protein 13.8Fat 17.0Carbs Topco Associates, Inc. Whole Wheat Fajita Style Tortillas, Whole Wheat Mexican Dinner Mixes 298kcal 8.8Protein 7.9Fat 47.4Carbs Topco Associates, Inc. Flour Burrito Style Tortillas, Flour Mexican Dinner Mixes 317kcal 8.3Protein 8.3Fat 50Carbs Topco Associates, Inc. Flour Taco Style Tortillas, Flour Mexican Dinner Mixes 304kcal 7.1Protein 8.0Fat 48.2Carbs Topco Associates, Inc. Flour Fajita Style Tortillas, Flour Mexican Dinner Mixes 316kcal 8.8Protein 8.8Fat 49.1Carbs Campbell Soup Company Ready To Serve Turkey Gravy, Turkey Gravy Mix 42kcal 1.7Protein 1.7Fat 5Carbs Roasted Carved White Meat Turkey, Creamy Mashed Potatoes, Gravy, Seasoned Stuffing And Mixed Vegetables - Includes An Apple Cranberry Dessert, Roasted Carved White Meat Turkey Campbell Soup Company Roasted Carved White Meat Turkey, Creamy Mashed Potatoes, Gravy, Seasoned Stuffing And Mixed Vegetables - Includes An Apple Cranberry Dessert, Roasted Carved White Meat Turkey Frozen Dinners & Entrees High in sodium — 57% DV per serving 90kcal 3.5Protein 2.4Fat 13.4Carbs Homestyle Turkey Breast With Stuffing H.J. Heinz Company Homestyle Turkey Breast With Stuffing Frozen Dinners & Entrees High in sodium — 30% DV per serving 110kcal 8.6Protein 2.4Fat 14.1Carbs Western Family Foods, Inc. White Flour Tortilla Mix, White Flour Flours & Corn Meal 390kcal 7.3Protein 12.2Fat 63.4Carbs

Last updated: September 28, 2026

Note: This site presents label data from USDA FoodData Central for general information. It is not medical advice. Check the package label; formulations change.