One of the most important supplements everyone should be taking. Relieves my arthritis from years of dancing and completely eliminates my allergies. In fact I no longer use allergy pills. On top of that, as an asthmatic I no longer need steroid inhalers and rarely use my rescue inhaler anymore. When I spent 6 days in the hospital with bronchitis, the pharmacist of the hospital allowed me to take my NAC regularly along with the other medicines for my bronchitis. NAC is actually prescribed as medicine in hospitals in Europe. Here in America as well (particularly for asthma) But In America they don't tell us about its benefits, because it's too effective. Big pharma will lose money if you're too healthy, Period. This also takes down inflamation in the body and can help other auto immune issues like eczema. I got eczema all over my face and body after the Malibu fires 2 years ago. Since taking NAC no more major issues