What? What is L-cysteine? Well I am glad I formatted the question as if you asked! L-cysteine is an amino acid. It’s actually an amino acid that is not essential to your existence. It is however added to a lot of baked goods, including breads, rolls, pizza dough, and even pastries.
So what! Well there is a lot of L-cysteine that is synthesized in laboratories. Most however is not. L-cysteine is added for commercial baking purposes to make food enhancers and speed the conditioning of the flour. If L-cysteine is used and it is not manufactured in a laboratory, where is it from?
It does depend on the source and the company producing the amino acid. The majority however is from China. It is from a variety of sources. I hope you aren’t eating any baked goods right now…. The sources include human hair usually collected from the floor of barber shops or salons, pig hair, duck or chicken feathers or cow horns. If it doesn’t bother you, good for you. If you are a vegetarian, vegan, Muslim or Jewish, it does make a difference.