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21st Century, Niacin, 250 mg, 110 Tablets

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21st Century, Niacin, 250 mg, 110 Tablets

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21st Century, Niacin, 250 mg, 110 Tablets

In Stock
250 mg
100 mg
250 mg
  • Expiration Date: 01/2020
  • Shipping Weight:
    0.3 lbs
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  • Product Code: CEN-22849
  • UPC Code: 740985228494
  • Package Quantity: 110 Tablets
  • Dimensions:
    3.7 x 2.4 x 1.8 in, 0.25 lbs
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Product Overview


  • 10% Free
  • Vitamin Supplement
  • Prolonged Release
  • Helps Covert Food into Energy and Helps Maintain Skin, Digestive & Nervous Systems
  • Laboratory Tested - Guaranteed Quality
  • 21st Century...for a Healthier Future

Niacin (Vitamin B-3) plays a key role in converting food into energy. It also helps maintain health function of the nervous and digestive systems, and the skin. Prolonged release vitamins slowly release nutrients into the body over an extended period of time.

Suggested Use

As a vitamin supplement, take one (1) tablet daily with any meal or as directed by your healthcare provider. Do not exceed recommended dosage. Individual results may vary.

Other Ingredients

Hydroxypropyl methylcellulose, cellulose, stearic acid, silicon dioxide, magnesium stearate, PEG.

No added sugar, salt, yeast, preservative, artificial flavors or colors.


Keep out of reach of children. Do not use if product appears to be tampered with or seal is broken.

Store at room temperature.

Supplement Facts
Serving Size: 1 Tablet
  Amount Per Serving % Daily Value
Niacin 250 IU 1250%
Calcium (as Calcium Carbonate) 125 mg 12%
Percent Daily Value (DV)
iHerb Customer Reviews

Great product

Posted by iHerb Customer on Mar 20, 2017 | Verified Purchase

I am drinking it since I have seen the studies it can help with some lighter "mood downs". I am repurchasing regularly.

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perfect dose

Posted by iHerb Customer on Aug 02, 2016 | Verified Purchase

i used to take 500 mg each 2 days (1/2 tablet) couldn't make it smaller, but this product with tablets of 250 mg are perfect.

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its ok

Posted by iHerb Customer on Jul 08, 2016 | Verified Purchase

i have not used so lont time yet, but i like this niacin , tryed 500 mg but its was to mutch . i take a half of 250 mg. that is perfekt .

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I didnt order with prolonged release and got a prolonged release one!

Posted by iHerb Customer on May 09, 2015 | Verified Purchase

I made sure to check that this is not prolonged release. When I got it I saw prolonged release. iHerb didnt have the picture updated! This one star is more to iHerb than to 21st century! All otehr, I am happy with iHerb, except this one time!

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Posted by iHerb Customer on Jul 30, 2014 | Verified Purchase

good quality, meets my doctor's requirements

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