N-acetylcysteine (NAC) is the acetylated form of the amino acid cysteine, one of the most important amino acids for your body. The body cannot produce it on its own, so it is essential to ensure our intake through diet or supplements. NAC is known for its ability to support the natural production of glutathione - one of the bodys most powerful antioxidants. Benefits of NAC 500 mg from HealthyWorld®: Body Support: NAC is known for its support for the liver and body detoxification. Efficient Absorption: The acetylated form of NAC provides immediate and efficient absorption. Ideal for Everyone: Recommended for the elderly, people with a hectic lifestyle, those who do intense physical exercise, and those who want to support their health during the cold months. Antioxidant Action: Helps strengthen the immune system.