- INCI Name:Cysteine
- Ingredient Name:L-cystine
- Chemical Name:L-Cystine
- CAS Number:56-89-3
- Functions:Amino Acid, Anti-Aging Agent, Lightening Agent, API Intermediate, Antioxidant
- Synonyms:(R,R)-3,3'-dithiobis(2-aminopropanoic acid), L-alpha-Diamino-beta-dithiolactic acid, L-Cystine, β,β'-Dithiodialanine, (-)-Cystine, Cystine
FERMOPURE® L-Cystine Pharma is a white or almost white, crystalline powder that dissolves in dilute solutions of alkali hydroxides. It is the amino acid dimer formed when a pair of L-Cysteine molecules are joined by a disulfide bond through oxidation. L-Cysteine is one of the 20 natural amino acids and, along with methionine, is the only one that contains sulfur. WACKER has developed a new production method for L-Cystine via fermentation using non-animal and non-human raw materials.