I am a holistic MD. I previously have used and recommended Jarrow and Drs Best brands of NAC. Decided to try Pure Encapsulations when my last Jarrow bottle ran out. (Always doing brand research for myself and my patients.) The Pure Encapsulations version is quite a bit more expensive than the Jarrow or Drs Best, so I hoped I'd be able to tell some kind of notable difference. Unfortunately, I could tell a difference, but it was not a good one. I took 1 capsule a few hours after dinner, and about an hour later I had terrible stomach cramps. The pain was so bad I could barely sleep. I had to get up and take a bunch of ginger. I didn't understand exactly what caused the pain at first (thought it could have been something I ate), so I took another dose the next night. No mistaking it this time. The pain returned and was similar in quality and distribution. There was only one "new" item in my supplement routine. The NAC. Sooo.... That was my last dose. The pain has not returned. I really love Pure Encapsulations for several other things (like L-Theanine), but in this case, I guess it's actually too strong for me. Back to Jarrow I go...

This product was recommended to me by a coworker , every 3 months I would catch a cold that would turn into a upper respritory infection , I would have to take antibotics and then repeat process, (i'm a non smoker) the last time I went to doctor he sent me for Xray's and a pulmonary specialist<br />Xrays didn't show anything and breathing test didn't show anything, doctor gave me inhaler that made things worse, I started NAC capsules<br />still recovering but I really feel that these capsules are helping me recover, coughing spasms are almost gone and I will continue taking after I am completely well and see what happens, I'm really sick and tired of having this issue, I will repost review to give update on health status and effectiveness of taking NAC to prevent issues and keep lungs healthy, like I said i'm very healthy never had issues before but something is going on with my lungs, I hope this is the answer to help maintain lung health

I've only been trying this 2 days but surprisingly better than expected. I have scarred lungs which causes flem to accumulate and often excessive throat clearing after eating....GONE. this is what I had hoped for very pleased Also often after eating larger meals I get very sleepy and can hardly stay awake... GONE. This is an unexpected benefit .i take one in the morning before i eat . Works for the whole day .<br /><br />Here's an update now taking 3 a day and I would say that on average I have increased my blood oxygen level 2 points ( I have a meter) to now between 94 and 97 considering i live at 5200 feet above sea level that's pretty damn good

I have taken this brand PE NAC quite a few times and I have never had stomach problems. However, I purchased the latest bottle in Dec 2020. This particular bottle must be a BAD BATCH of NAC because it KILLS my stomach. Make sure to eat heavy starch foods like bread before consuming these. NAC is NOT supposed to cause these symptoms. However, I have had in the past Amazon storage issues that have caused supplements to go bad. So if it smells funny and/ OR gives you a problem, especially when it didn't in the past or other brands don't have that issue; it's because it went Sour or BAD. Make sure to RETURN IMMEDIATELY!

Is it true you have added hydroxypropyl methycellulose to the "Other Ingredients" list????<br />It has never been listed before when I have ordered this! I was going to order again... and I saw that you had. That stuff is terrible for your digestive system.<br />I will absolutely NOT be ordering this from you if it is. And why do the larger quantities not include that ingredient?

All of Pure Encapsulations products are of the highest quality. When coupled with selenium, this product helps the body to make glutathione, which destroys free radicals. Free radicals are at the root cause of many diseases.