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Now Foods, Niacin, 500 mg, 100 Capsules

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In Stock
  • Expiration Date: Aug 2019
  • Shipping Weight: 0.24 lbs (0.11 kg)
  • Product Code: NOW-00481
  • UPC Code: 733739004819
  • Package Quantity: 100 Capsules
  • Dimensions: 4.4 x 2.3 x 2.3 in, 0.2 lbs (0.09 kg)
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Product Overview


  • Nutritional Health
  • Vitamin B-3
  • GMP-Quality Assured
  • A Dietary Supplement

Suggested Use

As a dietary supplement, take 1 capsule daily as needed, with a meal; or take as directed by your healthcare practitioner. Consider taking these other NOW products: Beta-Sitosterol Plant Sterols and Sytrinol.

Other Ingredients

Gelatin (capsule), cellulose, silica and magnesium stearate (vegetable source).


Store in a cool, dry place after opening.

Caution: For adults only. Do not exceed recommended dose. Do not take on an empty stomach. This product may cause a temporary flush, itching or tingling red rash on the skin. This reaction is normal and harmless. If you experience any prolonged discomfort, discontinue use. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.

Supplement Facts
Serving Size: 1 Capsule
  Amount Per Serving % Daily Value
Niacin (Vitamin B-3) 500 mg 2500%
iHerb Customer Reviews

Mocny sen

Posted by 5016317272523848590 on Oct 22, 2016

PIERWSZE ZAŻYCIE NIACYNY Po ok. 20 min. od zażycia kapsułki zaczęły swędzieć mnie dłonie od środka, potem płatki uszu, w końcu przedramiona i nogi. Podobno tak działają duże dawki niacyny, ale i tak byłam zaskoczona. Lekkie swędzenie i zaczerwienienie skóry utrzymywało się ok. 90 min. W międzyczasie zrobiłam się bardzo senna. Poszłam spać wcześniej i miałam mocny sen, po którym obudziłam się wypoczęta. Następnego dnia w pracy byłam dużo bardziej wyluzowana. Może dlatego, że w końcu dobrze się wyspałam. Z uwagi na długo utrzymujący się efekt "flush" zadecydowałam, że zanim przyzwyczaję się do niacyny będę wysypywała z kapsułek połowę dawki przed zażyciem. Otworzenie żelatynowej kapsułki i wysypanie połowy dawki jest dość łatwe. KOLEJNE DWA DNI ZAŻYWANIA Połowa zawartości kapsułki (ok. 250 mg) doprowadza mnie prawie do efektu "flush" (odrobinę swędzi mnie kark). Lepiej śpię. Działa. Jeśli uważasz, że powyższa recenzja jest pomocna, potwierdź to proszę poniżej.

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Good but NOT for first-timers

Posted by 5014091469939866517 on Oct 18, 2016

After reading extensively on niacin benefits, decided to give it a go. Big mistake starting off with 500mg straight off! Should've taken it slowly and started at 50-100mg twice a day. Flushing is tolerable, but itching skin wasn't! Makes one want to scratch away for an hour! Itching was worse on feet and arms. Then, it was followed by severe chills. Will not give up too easily on niacin though - just going to adjust the dose! Trying out 100mg soon, and tablet form would be best, so that you can chop it in half if too strong. Btw, this one is capsule, so no way to half the dose if you find it too strong. In case you find yourself in my situation struggling with itch and chills, I suggest drinking LOTS of water to hasten the body washing it off! Helped a lot!

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Good tolerability

Posted by 4667862829159471766 on Oct 06, 2016

Good tolerability is only what I can say now, about results on lipid targets I will tell after blood-tests after 3 months.

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Work your way up to this dose

Posted by 5604018882427087366 on Sep 30, 2016

Great, but don't try and take this dose straight up. I purchased these for my son to see if they helped his long standing depression. I purchased 100 mg capsules first though and I am really glad I did. My son started on a dose of 100mg and had a flush. I dropped it to 50 mg by opening the capsule and taking half out. He was fine. Have gradually increased by 50 mg a night to work his way up to the 500mg capsule. He has experienced flushes along the way, but we have taken it slowly and simply repeated the same dose rather than increasing it until he tolerated it without a flush. I would hate to see how bad the flush might be if he had taken 500mg straight up and we certainly didn't want him to have a negative experience with this. He is now taking 800mg and beginning to look a lot less depressed. He is starting to smile, is engaging far more socially and can see the funny side of life. Nothing else has worked for him so for us Niacin is a miracle. It's very economical and highly effective. If he misses a couple of nights he is back to his depressed self so making sure we always have a spare bottle. Very very happy. Thank you Now Foods.

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Healing my schizophrenia

Posted by 5386587741773461120 on Sep 18, 2016

This product is fantastic, I've been on niacin I've been on niacin for 7 months, taking 2 pills 3 times a day and I'm getting better and better. I'm used to the flush I don't know why everyone makes such a big deal about it you get use to itand it gives a bit of placebo when you feel it working in your body. I just hope they continue making flush niacin because I love it!

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