21st Century, MgO, 400 mg, 90 Tablets


21st Century

Only 10 left!


  • Pharmaceutical Grade
  • Compare vs. Blaine Mag0x 400
  • Mineral Supplement
  • Gluten Free
  • Guaranteed Quality Laboratory Tested

Magnesium is an essential mineral and supports bone and muscle health.

Suggested Use

As a mineral supplement, adults take one (1) tablet daily with any meal or as directed by a healthcare provider. Do not exceed recommended dosage. Individual results may vary.

Other Ingredients

Cellulose, stearic acid, croscarmellose sodium, kelp. Contains <2% of: magnesium silicate, magnesium stearate, maltodextrin, silicon dioxide.

No added sugar, yeast, preservatives or artificial flavors or colors.


Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure. Stop use and contact a physician if adverse reactions occur.

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 The Supplement Shop 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 The Supplement Shop.

Supplement Facts
Serving Size: 1 Softgel
  Amount Per Serving % DV
Calcium (as Calcium Carbonate) 65 mg 5%
Magnesium (as Magnesium Oxide 400 mg USP) 250 mg 60%