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21st Century, Magnesium, 250 mg, 110 Tablets

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21st Century, Magnesium, 250 mg, 110 Tablets

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21st Century, Magnesium, 250 mg, 110 Tablets

In Stock
  • Expiration Date: May 2020
  • Shipping Weight:
    0.35 lbs
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  • Product Code: CEN-22713
  • UPC Code: 740985227138
  • Package Quantity: 110 Tablets
  • Dimensions:
    3.8 x 2.5 x 1.8 in, 0.3 lbs
    Switch to Metric units

Product Rank:

#75 in Supplements >
Frequently Purchased Together
Product Overview


  • 10% Free
  • Dietary Supplement
  • Essential for Protein Synthesis & Cellular Energy
  • 21st Century...for a Healthier Future

Necessary for the metabolism of calcium, vitamin C, phosphorus, sodium, and potassium. Magnesium is essential for nerve and muscle function, and for converting blood sugar to energy.

Suggested Use

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

Other Ingredients

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

Gluten free. Unconditionally guaranteed for purity, freshness and label potency. No added sugar, salt, 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.


While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
Supplement Facts
Serving Size: 1 Tablet
Serving Per Container: 110
  Amount Per Serving % DV
Calcium (as Calcium Carbonate) 47 mg 5%
Magnesium (as Magnesium Oxide) 250 mg 62%
Percent Daily Value (DV).
iHerb Customer Reviews

Works Well

Posted by iHerb Customer on March 22 2018 | Verified Purchase

Had been suffering from weakness and fatigue. This magic mineral fixed it.

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Good and cheap

Posted by iHerb Customer on March 8 2018 | Verified Purchase

Price is good and so is the product. Will buy again.

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Great For RLS

Posted by iHerb Customer on March 5 2018 | Verified Purchase

I was lacking in magnesium and was having leg cramps and restless leg syndrome at night. Since I started supplementing with this, my cramps have disappeared and it has relieved my other symptoms too. I get a really good night’s sleep now.

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Posted by TheJonald on February 23 2018 | Verified Purchase


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Posted by iHerb Customer on February 22 2018 | Verified Purchase

magnesium oxide is the worst but cheap

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