N-Acetyl-L-Cysteine, also known as N-Acetyl Cysteine or N acetyl cysteine, is an amino acid common in vivo, can be transformed from the body of methionine, cystine can be transformed with each other, N-acetyl Cysteine is made of L-cysteine. L-cysteine can be supplied with high quality and best price. Product name N-acetyl-L-cysteine Appearance white Powder Odor Characteristic Purity 99% Grade Food Grade Shelf life 2 Years Storage Store in cool & dry place, Keep away from strong light and heat. 1> N-Acetyl-L-cysteine NAC Powder can be added in health care supplements. 2> N-Acetyl-L-cysteine NAC Powder as a dietary supplement. 3> N-Acetyl-L-cysteine NAC Powder can be added in Food. 1. n-acetyl l-cysteine can increase the content of glutathione in the body 2. n-acetyl l-cysteine has direct anti-peroxidative damage 3. n-acetyl l-cysteine eye drops are available at home and abroad. In addition to human use abroad, there are also animal eye drops 4. n-acetyl l-cysteine was initially considered ineffective due to its low oral bioavailability. After years of clinical studies, it has been shown that oral acetylcysteine is as effective as inhalation. 5. n-acetyl l-cysteine alone is used as a cream for external use, and there are currently no reports on the market at home and abroad, but acetylcysteine as a cosmetic ingredient has been studied abroad.