I have used Niacin supplements over the years for cholesterol and for its nootropiic properties. More recently, a large number of Niacin supplements have promoted the “flush free” capsules, which prevent the flushing effect that can cause your skin to turn red for 15-20 minutes after taking regular Niacin. The flushing is actually not harmful and may be more beneficial (blood dilation) in promoting healthy cholesterol.This particular supplement is not flush-free,, and I definitely experienced the flush effect. If you are sensitive to the flushing, this can be a bit uncomfortable (but the effect dissipates fairly quickly). Each capsule is 500 mg of Niacin as nicotinic acid. This brand seems to be clean and effective. Read more

This brand is such a great value and transparent with what you are taking! These vitamins are easy to swallow, but I don't take them on an empty stomach as this brand is very potent! The "flushing" experience with these when you first start taking them is mild but effective and doesn't last more than an hour. I have been taking niacin to balance my cholesterol levels and it has worked over the past year. Switching to this brand has had a positive effect on my energy levels and mood too. I am very relieved these come in a 200 capsule bottle! I have to repurchase much less often and it is more eco-friendly for packaging! Read more

This niacin is non-buffered and will make you very hot and flushed for about an hour after taking it. I take it to purposely flush out toxins from micro vessels in my inner ears. I have suffered off and on from tinnitus and this type of niacin seems to be the only thing that seems to help with it. It causes those micro blood vessels to expand (why you get so red and hot) and any debris is swept out. I think this is a very good supplement. If you take it on an empty stomach you will get intensely hot. I take it with some food to curb the heat a little bit. Read more

So, this is the "flush" version of niacin, meaning that if you take it, after a while your skin will get this patchy red look to it and you will feel like you're ON FIRE! I like to keep flush niacin around to help with headaches I get sometimes. The flush happens because niacin dilates all of your veins, including the tiny capillaries, so it's super good if you suffer from poor circulation. After the flush goes away I usually feel very cold and occasionally fall asleep. Read more

I was told by my doctor that my triglycerides level is too high. He recomandates B3 and fish oil. These large size capsules with gelatin coated are easy to swallow. For the first week. I took this pill once a day. It made my skin feels like hundreds of ants crawling on my skin. My face was flushed with redness and itchiness for about an hour. I found out I must take it with food to lessen the side effects. This supplement seems to be of high potency and evenly distributed. Read more

Five stars. I notice some flush effect with this B3 supplement, but it isn’t anything above what I typically expect from B3 supplements. I only take one capsule a few times a week to supplement my daily multivitamin. It doesn’t bug my stomach, and it is easy to swallow. There is no funky odor or taste associated with it, and I’d say yes, I would definitely buy it again. Read more

This is a good Niacin supplement. I've tried others and this one is just as good. It does cause a red flushing which is normal and does subside after about 30 minutes to an hour. It's lessened over time if you take this regularly - typically. Also eat something before taking it which reduces the uncomfortableness of the redness. It will go down and is not harmful. Read more