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Now Foods, Niacin, Sustained Release, 500 mg, 250 Tablets

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In Stock
  • Expiration Date: Oct 2019
  • Shipping Weight: 0.65 lbs (0.29 kg)
  • Product Code: NOW-00482
  • UPC Code: 733739004826
  • Package Quantity: 250 Tablets
  • Dimensions: 2.7 x 2.7 x 4.7 in, 0.55 lbs (0.25 kg)
Product Overview


  • Nutritional Health
  • GMP Quality Assured
  • A Dietary Supplement
  • Vegetarian/Vegan

Niacin supplements may sometimes temporarily cause flushing and/or itching, but this sustained release tablet should minimize those symptoms. To further limit these uncomfortable but not dangerous symptoms, take daily and avoid missing doses.

Suggested Use

As a dietary supplement, take 1 tablet daily with a meal. This high potency tablet should be taken under doctor's supervision. Consider taking these other NOW products: B-50 Complex, D-Ribose and Sytrinol.

Other Ingredients

Cellulose, stearic acid (vegetable source), silica and vegetarian coating.

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.


Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition (e.g. liver problems, stomach ulcers, diabetes, gout, etc.). Transient GI symptoms may occur at inception of treatment, consult physician if symptoms persist. Keep out of reach of children.

Store in a cool, dry place after opening.

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

Vitamin B3

Posted by 5724542010416070290 on Aug 29, 2016

Necessary, if you want to stay in a good mood or lower your cholesterol level.

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Posted by 5084538327725119953 on May 10, 2016

good product

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Posted by 5720507474578383192 on Mar 15, 2016

I've tried low-flushing niacin before, but this is true to it's product claim. I worked my way up to an entire tablet at once, but even on my first few doses, I didn't have the flushing-red that is typical with niacin. It's important to keep the integrity of niacin, and not remove the flushing-causing elements, as that is part of the benefit.

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Thanks iherb for your great site service and unbeatable prices. Apparently, Niacin gives me hot flashes and itching

Posted by 5061761049409761898 on Jun 21, 2015

I'm an overseas customer, amazed at iherb's great level of service.So much information, so many great choices. And this awesome customer reviews. Shipping was fast and inexpensive. Got my order in a very timely manner. As for this product, I'm sure it is of good quality. but it does give me a rash itchiness and hot flashes or 1 long very warm flushing feeling. Will try to cut the dosage to half a tablet. I've already made my 2nd purchase from iherb and the 3rd is on its way.

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Helps with over methylation

Posted by 4765620060371386981 on Jan 26, 2015

Use this as needed when following methylation protocol, have a tendency to over-methylate and this helps very quickly. I break off only about 1/4 tablet and that does the trick.

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