99% N-Acetyl-L-Cysteine Powder CAS 616-91-1
What is N-Acetyl-L-Cysteine?
N-acetyl-L-cysteine (NAC), a building block of glutathione, is known as the "mother of antioxidants." It increases glutathione levels in the body, which is crucial for lung and brain function and liver detoxification. It also helps break down mucus, making it easier to cough up phlegm caused by respiratory and lung diseases. It also helps regulate glutamate levels, which affects neurons in the central nervous system.
The human body can synthesize cysteine in small amounts, making it classified as a "semi-essential" amino acid. The body can normally synthesize N-acetyl-L-cysteine from serine and methionine, but this requires adequate levels of folic acid, vitamin B6, and vitamin B12. Along with two other amino acids (glutamine and glycine), it is required for glutathione synthesis.

Test Report:

Benefits Of N-Acetyl-L-Cysteine
Antioxidant
NAC is a precursor of glutathione (GSH), promoting intracellular GSH synthesis, enhancing the body's ability to scavenge free radicals, and reducing oxidative stress damage.
Thrombyl groups (-SH) in its molecule directly neutralize reactive oxygen species such as hydrogen peroxide and hydroxyl radicals, protecting cells from oxidative damage.
Expectorant
NAC can break down disulfide bonds (-S-S-) in sputum, reducing sputum viscosity and liquefying it, thereby facilitating sputum excretion and relieving airway obstruction.
Detoxification
NAC is an effective antidote for acetaminophen (paracetamol) poisoning. By replenishing GSH, it helps eliminate toxic intermediates produced by acetaminophen metabolism and reduces liver damage.
Applications of N-Acetyl-L-Cysteine

Medical
Respiratory Diseases: As an expectorant, it is used to treat thick and difficult sputum caused by chronic obstructive pulmonary disease (COPD), chronic bronchitis, and emphysema.
Liver Protection and Detoxification: It is used to treat liver damage caused by acetaminophen (paracetamol) overdose by supplementing glutathione precursors to aid detoxification.
Antioxidant and Anti-inflammatory: Due to its antioxidant and anti-inflammatory properties, NAC is also being studied for the treatment of other conditions associated with oxidative stress and inflammation, such as cardiovascular disease and neurological disorders.
Health Products
Due to its antioxidant properties, NAC is often used as a nutritional supplement to support the immune system, alleviate oxidative stress, and maintain overall health.


Other Uses
Food Additives:For example, in bread, it promotes gluten formation, promotes fermentation, prevents mold, and prevents aging. In natural fruit juices, it prevents vitamin C oxidation and browning.
Cosmetics: It is primarily used in beauty lotions, perming solutions, sunscreens, and skincare creams.













