21st Century Niacinamide 500 mg Prolonged Release Tablets, 110-Count

I-N Distributors
(6049)
Seller's other items
US $7.15
Condition:
New
3 available143 sold
Breathe easy. Returns accepted.
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Located in: Branford, Connecticut, United States
Delivery:
Estimated between Mon, Nov 24 and Sat, Nov 29 to 94104
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30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
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eBay item number:376041728982
Last updated on Nov 16, 2025 12:00:04 PSTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Main Purpose
General Wellness
Expiration Date
Mention on Bottle
Primary Supplement Type
Vitamin-b
Size
110 Count (Pack of 1)
Ingredients
Calcium Carbonate
UPC
Does not apply
MPN
Does not apply
Product Dimensions
2 x 3 x 4 inches; 0.02 ounces
Dosage
500 mg
Flavor
Unflavored
Brand
Branded
When to Take
After Meal
Active Ingredients
Vitamin B3 (Niacin)
Type
Vitamin
Department
Adult
Formulation
Tablet
Item Form
Tablet
Number of Pills
110
Features
Gluten-Free
Diet Type
Vegan
Category

Item description from the seller

About this seller

I-N Distributors

99.6% positive feedback•16K items sold

Joined Aug 2022
Usually responds within 24 hours
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
4.9

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Seller feedback (6,215)

All ratingsselected
Positive
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Negative
  • f***n (5952)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Received my Item on the 13 of July Thank you If you have already shipped a second bottle please reply.
  • 8***7 (812)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great product and price, easy transaction.
  • n***o (1801)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great product and fast delivery
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Product ratings and reviews

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4.9
30 product ratings
  • 28 users rated this 5 out of 5 stars
  • 1 users rated this 4 out of 5 stars
  • 1 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 0 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 27 reviews
  • by denny245
    Nov 20, 2024Top favorable review

    I wanted to reduce my high Triglyceride ...

    I wanted to reduce my high Triglyceride levels. Niacin that causes flushing supposedly lowers, and prevents high Triglyceride levels in the body that cause a fatty liver. My Triglycerides have been high for decades even though my Cholesterol levels have stayed normal, but for how much longer is my question. I have not been diagnosed with a fatty liver by a doctor, but it is a good bet I have one, and a fatty liver can lead to future medical problems. I do not want to be sick as I age.

    Verified purchase: YesCondition: NewSold by: nooroze

  • by margie-63
    Jul 20, 2021Top critical review

    B2 for skin

    of course there is no overnight reaction to taking vitamins so cannot rate or recommend this product. Skin doctor advised me to start taking B2 so I am doing so. The price on this product was the best I could find on internet and drug stores. These pills are large. I cut them in half to make easier to swallow.

    Verified purchase: YesCondition: NewSold by: swanson_vitamins

  • by ramrodpete
    Dec 15, 2020

    Dermatologist recommended this product

    My dermatologist recommended I change from plain niacin to Niacinamie 500 mg twice a day. I looked it up and found it is best for skin. The niacinamide tablets were expiring 06/21/2021 but my nephew pharmacist said it still would still have good strength so I bought enough to last thru 2021 because the delivered price from this vender was much better than others.

    Verified purchase: YesCondition: NewSold by: planetstuff1

  • by penelopekellyreid
    Jun 09, 2024

    Thanks!!! His doctor wants my husband to take them!!!

    Thanks!!! His doctor wants my husband to take them!!!

    Verified purchase: YesCondition: NewSold by: dealgrab

  • by longstemrose
    Jan 14, 2023

    Lifts my mood

    I take this niacinamide when I feel depressed. It lifts my mood nicely.

    Verified purchase: YesCondition: NewSold by: swanson_vitamins

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