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21st Century, Magnesium, 250 mg, 110 Tablets

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In Stock
  • Expiration Date: Jun 2019
  • Shipping Weight: 0.35 lbs (0.16 kg)
  • Product Code: CEN-22713
  • UPC Code: 740985227138
  • Package Quantity: 110 Tablets
  • Dimensions: 3.8 x 2.5 x 1.8 in, 0.3 lbs (0.14 kg)
Bundle Offer
Save $4.00 when you purchase these items today for only $9.49
Total: $13.49
Combo Discount: - $4.00
Together: $9.49

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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.

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

cheap but partially effective

Posted by 5593605904150784793 on Oct 07, 2016

This magnesium product is Magnesium Oxide, it's the cheapest salt of magnesium that's why the product is so cheap as well but it's definitely not the best kind of magnesium salt . Magnesium oxide is pretty poor concerning bioavailability . But still, fine for low budget.

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Good Product/Magnesium

Posted by 4832693239022326578 on Oct 02, 2016

I feel better taking this product. It did not make my stomach hurt.

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Magnesium 250mg

Posted by 4919213062912088389 on Sep 18, 2016

I can't swallow this tablets cause they are so so so dry , but my son loves them.. I purchased myself the liquid magnesium... cause this make me feel horrible while i must swallow the...

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Eased the cramps in my lwgs

Posted by 5647116188909667728 on Aug 27, 2016

Definitely works as I can finally sleep peaceful without cramps in my legs

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Posted by 4701243061078476502 on Aug 09, 2016

Good product for good price.

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