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O2B Magnesium Complex 500mg

5.0 (5 reviews)

$ 34.50$ 69.00

O2B Magnesium Complex is a high-potency supplement containing 500mg of elemental Magnesium. Magnesium is a significant all-rounder for the body, supporting the relaxation of smooth muscle and healthy muscle tone, sleep quality, and insulin sensitivity. People who suffer from stress, and cramps in the night or who exercise regularly tend to use up their body’s magnesium reserves quicker than others.

$ 34.50
$ 69.00

169 in stock

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O2B Magnesium Complex capsules contain a very high level of this essential mineral that is used by every cell in the body. Some common signs of Magnesium deficiency include; weakness, muscle twitching or cramps, cramping during menstruation, depression, vertigo, insomnia and disrupted sleep, fatigue, irritability, decreased appetite, restless legs when trying to relax, and irregular cardiac rhythm.

Magnesium participates in over 300 enzyme-based reactions in the body, from glucose conversion to the production of fatty acids and proteins. Approximately half the total magnesium in the body is found intracellularly in soft tissue, and the other half is present in bone. With muscles containing nearly 30% of all Magnesium found in the body, Magnesium is vital for muscle relaxation and bone growth and repair. It helps smooth muscles to relax, supporting the body through muscle tension, twitches and cramps, but also supporting the function and output of the most important smooth muscle in the body, the heart.

Magnesium is also extremely important for the metabolism of other minerals including calcium, potassium, zinc, iron, copper, sodium and the activation of thiamine (vitamin B1).


  • Relaxation of smooth muscle & healthy muscle tone
  • Healthy functioning of the Central Nervous System
  • Relaxed sleep
  • Healthy blood pressure
  • Heart health and cardiac output
  • Healthy blood sugar levels and insulin sensitivity

Each capsule contains:

  • Magnesium oxide 690mg
  • Magnesium glycinate 175mg
  • Magnesium citrate 130mg
  • Magnesium aspartate 125mg
  • Total Elemental Magnesium 500mg
  • Encapsulating aids


Take 1 capsule in the evening with food or as directed by your health care professional.


  • Magnesium may reduce absorption and efficacy of some medications and enhance the effect of others e.g. calcium channel blockers. If taking prescription medication consult your health care professional before taking this product.
  • If taking Tetracycline or Quinolene antibiotics separate doses by at least 2 hours before or 4 hours after taking magnesium.



5 reviews for O2B Magnesium Complex 500mg

  1. Amazing product!

    Review by Rosalee

    I’ve really noticed a difference since I’ve been using this product, highly recommend it!

  2. Used for years

    Review by Leanne

    I first used this from NFS about 20 years ago, then O2B (same product)… I have found over the years that I need to take it 15 to 30mins before going to bed.

  3. I won't run out again!

    Review by Jane

    I ran out two weeks ago and … I can see from my Fitbit sleep tracker how my sleep patterns have changed. I won’t run out again! *

  4. It Works

    Review by Wendy

    I’d been recommended by my doctor to get a magnesium supplement with multiple forms of magnesium in it (to maximise absorption as the different forms apparently are absorbed differently) and decided to try O2B Healthy’s version. Will be buying again!*

  5. Try It!

    Review by Karen

    Try it!

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* Disclaimer: Information on this website is for your general knowledge only. It is not intended to replace qualified medical advice nor intended to diagnose, treat, cure or prevent any disease. Do not disregard medical advice or postpone consultation with your health care professional because of information that you have read on this website. Always consult your doctor or other qualified health care professional regarding a medical condition. Always read the label of any natural health products you purchase and use only as directed. Consult a health care professional if symptoms persist. Customer reviews reflect individual experiences and results may vary.

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