L-cysteine is a proteinogenic amino acid contributing to building protein and includes the element sulphur. It can be synthesised in the human liver and is therefore not an essential amino acid. While L-cysteine hydrochloride is a less popular supplementalform of the amino acid L-cysteine.
Currently, there are several companies in the world can produce l-cysteine product, mainly concentrate in China. The main market players are Wacker, Nippon Rika, Ajinomoto, Ningbo ... Read more
