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21st Century, B-1, 100 mg, 110 Tablets

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In Stock
  • Expiration Date: Aug 2019
  • Shipping Weight: 0.3 lbs (0.14 kg)
  • Product Code: CEN-21151
  • UPC Code: 740985211519
  • Package Quantity: 110 Tablets
  • Dimensions: 1.8 x 2.4 x 3.7 in, 0.25 lbs (0.11 kg)
Product Overview


  • 10% Free
  • Vitamin Supplement
  • Helps Convert Food Into Energy and Helps Maintain the Nervous System
  • 21st Century... For a Healthier Future
  • Laboratory Tested - Guaranteed Quality

21st Century Vitamin B-1 (Thiamin Hydrochloride) plays a role in converting food into energy and helps maintain the nervous system.

Suggested Use

Take one (1) tablet daily with any meal for maximum results, or as directed by your healthcare provider. Do not exceed recommended dosage.

Other Ingredients

Cellulose, croscarmellose sodium, stearic acid, silicon dioxide, magnesium stearate.

No added sugar, yeast, preservatives, 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: %DV†
Thiamin (as Thiamin HCL, B-1) 100 mg 6667%
Calcium (as Calcium Carbonate) 180 mg 18%
†Percent Daily Value (DV) based on a 2,000 calorie diet.
iHerb Customer Reviews

Gives me energy.

Posted by 4953209479533855644 on May 08, 2016

Amazing product and price, give me energy.

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Mr & Mrs Parry

Posted by Reviewer1683303 on Apr 27, 2015

We are really pleased with this product and all the other products we have purchased such as Mosquito Patches.

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Seems Fine, Has Calcium

Posted by 4984163340875233311 on Dec 04, 2014

This is cheap, it seems to work as well as any B-1, and it has some added Calcium (which is important for B-1 absorption).

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Great value and low cost! (deficiency is quite common, so you should supplement...)

Posted by KurtJacobsen on Oct 31, 2014

Tablets are a little large, not that it's a problem to me. I take 100 mg B1 only once a week, because the human body has sufficient stores for a week or more. This is well above RDA, but since B1 is water-soluble, any excess is just excreted in urine at no risk. They have added 10% extra to the bottle at no extra cost, and it will last me a couple of years. (Expiration date is aug. 2015)

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A very good product!

Posted by 4673488338074931755 on Jul 29, 2014

I am very satisfied with this product and highly recommend it!

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