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21st Century, B-12, 500 mcg, 110 Tablets

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In Stock
  • Expiration Date: Jun 2019
  • Shipping Weight: 0.18 lbs (0.08 kg)
  • Product Code: CEN-22309
  • UPC Code: 740985223093
  • Package Quantity: 110 Tablets
  • Dimensions: 1.8 x 2.4 x 3.7 in, 0.15 lbs (0.07 kg)
Product Overview


  • 10% Free
  • Vitamin Supplement
  • Promotes Tissue Growth & Maintenance and is Essential for Red Blood Cell Formulation
  • Easy-to-Swallow Smaller Tablet
  • 21st Century...for a Healthier Future
  • Gluten Free
  • Laboratory Tested - Guaranteed Quality

21st Century Vitamin B-12 (Cyanocobalamin) promotes maintenance and growth of tissue and is essential for red blood cell formation.

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, stearic acid, croscarmellose sodium, 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†
Vitamin B-12
(as Cyanocobalamin)
500 mcg 8333%
Calcium (as Calcium Carbonate) 100 mg 10%
† Percent Daily Value (DV) based on a 2,000 calorie diet.
iHerb Customer Reviews

Ok !

Posted by 4687575196152505840 on Oct 20, 2016

En ole oikein varma imeytymisestä !! Toivottavasti edea 1 % imeytyisi !!???

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Great size

Posted by DarklyDreaming on Jan 07, 2016

These are great value for money and the size is great.

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Posted by 4705787402615357614 on May 07, 2015

I only use this ones a week, great price for a large amount

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loose weight

Posted by paquipm on Mar 09, 2015

I loose 0,5 kg in one weeK

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Recommended product!

Posted by KurtJacobsen on Oct 31, 2014

Tablets are a little large, not that it's a problem to me. I take 500 mcg B12 only once a week, because the human body has sufficient stores for a week or more. This is well above RDA, but since B12 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 sept. 2015).

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