








💥 Unlock your vitality with Dr. Clark’s Niacin 500 – Feel the flush, own the day!
Dr. Clark Niacin 500 delivers a potent 500mg dose of pure Vitamin B3 per capsule, supporting energy production, cardiovascular health, and nervous system function. With 100 gelatin capsules per bottle, it offers a convenient, high-quality supplement designed for professionals seeking to boost metabolism and overall wellness. The natural Niacin flush signals your body’s response and adaptation, enhancing sleep quality and vitality over time.























| ASIN | B00XLZTBOC |
| Best Sellers Rank | #238,773 in Health & Household ( See Top 100 in Health & Household ) #370 in Vitamin B3 (Niacin) Supplements |
| Customer Reviews | 4.4 4.4 out of 5 stars (31) |
| Date First Available | May 13, 2015 |
| Is Discontinued By Manufacturer | No |
| Manufacturer | Dr. Clark Store |
| Product Dimensions | 2 x 2 x 3.8 inches; 2.89 ounces |
R**W
Only buy Dr. Clark's Vitamins the cleanest and best.
Miracle vitamin B3 from Dr. Clark best on the market
J**A
For a good night's sleep -- Niacin *with the "flush" effect....
I've been having a lot of problems sleeping. My significant other passed away several months ago after 5 years of our intensely battling his illness to slow it down as much as we could. I was waking up several times a night -- not able to fall asleep, etc. I didn't want to go on another prescription and a friend of mine -- who is into more holistic medicine - recommended Niacin at 500 mg. It worked. My sleep is much improved, I still wake up in the middle of the night but now it is only once and I am much more rested when I do get up -- no hangover as I would have had from either over-the-counter sleep aids or prescription ones. PLEASE NOTE: This is Niacin B3 which has not been blended with other ingredients to remove the "flush" that is a body's natural response to Niacin. However, once those neutralizing ingredients, are mixed in, the power of the Niacin is also diminished - and will not produce the aid to sleep you want - if that is what you're taking Niacin for. The "flush", if you are not prepared for it to occur, can have rather frightening physical effects early on in taking it. The effects on subsequent nights fade rather quickly as your body adjusts to it. As I understand it, though I have not researched this well enough to confirm -- one's flush" reaction is because your body is too low on Niacin. The "flush" effect diminshes every night until after several days it is minmal and over time will go away altogther. But you need to be prepared for what you are going to feel the first time -- or it will scare the bejesus out of you. What happens, within about 1/2 an hour, your body starts to turn very red (hence the name "flush" and it keeps getting worse for a while and your skin starts to itch terribly. Again remember -- this severe effect is at it's most extreme the first time you take the pill. The next night is a fraction of the first night's flush. But the first night can be really scary. It can feel like you are having an extreme allergic reaction to the Niacin. But you need to remember - it is not an allergic reaction -- it is just how your body is responding to getting the additional Niacin it needs. The "flush" lasts under an hour and then goes away. The next night it's less so and so on. Within a week or so, you should be able to take the Niacin just before you fall asleep and sleep through the decreasing amount of your body's reaction. Eventually, the "flush" disappears altogether. Once in a while I will feel a bit of th eitching - but that's rarely. However, -- the night's sleep is so incredibly improved -- you will start to feel like a new person. I can't imagine going to bed wihtout it now. If you purchase a version of Niacin that is promoted as "flush-free" you will not get the sleep benefits you are seeking if that is why you are taking the Niacin. To me, "flush-free" is a waste of money and a loss of good nights of sleep. I picked Dr. Clark's version of Niacin after a lot of research. I wanted the purest, most organic form of the drug. Supplements are not government regulated - and as a result, a lot of companies advertise a lot more of the ingredient than their supplements acutally have. The supplemts are often mixed with ingredients that are not the healthiest for you. I don't have proof, but I've researched Dr. Clark's products enough to feel confident that this product is extremely pure and contains, pretty much, the amount of Niacin its label claims. I don't think I would have had such an extreme version of the "flush" the first night, if that weren't the case. *** On an additional note -- you can also purchase a bottle of Dr. Clark's 100 mg Niacin and build up over several days to 500 mg - which will make ht e"flush" less severe at the start -- but you will still feel and you will still have to remind yourself that your body's response to th eNiacin will pass within the hour.
E**O
Pure niacin with no fillers.
Purest niacin out there. No fillers. I can take some out of the capsule and it mixes well in liquid. I believe it makes a lot of difference to take the pure form. I’ve noticed the difference. Start slow.
D**T
"Flush" is strong , lasts an hour(!), but that tells me its working :-)
Well, I try many different Niacin products, and can feel whether they are working by the 'flush'; having noticed that some give me more a 'kick' in that regard, sometimes almost intolerable. With these capsules, I'd say the flush is on the strong-side. Interestingly, I don't get the tingle in my face, but more on my neck, back and arms. I notice the flush does stay a long time, like an hour. I prefer Niacin over Niacinamide, because I can tell how effective it is by the skin flush, which I don't usually mind too much. The main reason I was drawn to buy this product is that I trust Dr Hulda Clark.
L**7
Good product....
This niacin is helpful to convert carbs to energy and improve memory. Supports the nervous and circulatory systems. Helps the gut to function more efficiently, feel more relaxed at a deep level and sleep better. I like the flush feel and for me I prefer it over the non-flush products. Both work but I feel they are different in the way you utilize them. I have been more alert and have more energy in the short time I have been taking it. Using companies that have integrity and make products that one can have faith in without all the additives and artificial ingredients is important. No magnesium stearate (flowing agent) in this brand of niacin. I avoid this as much as possible as it interferes with absorption. This company can be trusted.
D**.
Read a book on niacin by Dr Hoffer, Saul ...
Read a book on niacin by Dr Hoffer, Saul and Foster and the hundreds of benefits of niacin, lowers cholesterol, protects skin, high doses for schizophrenia (niacin deficiency), over 400 benefits or actions in the body
K**R
Just What The Doctor Ordered!!
Since I began taking Niacin along side my B12, I look and feel more healthy than I've been in what seems like forever.
B**D
EXPIRATION DATE COVERED!!! LIED!!!
When I finished my bottle, I went to throw it in the recycling bin & first removed the sticker on the bottom of the bottle that included the expiration date, & I found that they had used the sticker to cover the original expiration date that showed that not only had the product EXPIRED 2 YEARS ago, but they TRIED TO COVER IT UP & placed a sticker with a different expiration date & sold me the expired product with the sticker coverup!!! DO NOT BUY FROM THIS MANUFACTURER!!! THEY DELIBERATELY SOLD ME AN EXPIRED PRODUCT THAT THEY LIED & PUT A NEW STICKER ON SHOWING IT WAS STILL GOOD FOR 2 MORE YEARS!! FRAUD!
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