A highly versatile nutrient, Magnesium supports over 300 biological reactions in the body, with certain forms of Magnesium being more readily utilised by some physiological processes over others.

Below are 5 RN Labs formulas that contain Magnesium with a quick guide on choosing the optimal product to suit the unique needs of your patient.

Mg Threonate

Mg Threonate is best suited to patients who require magnesium delivery to the brain specifically.

An extremely bioavailable form of magnesium, Magnesium Threonate is the optimum form of magnesium for Nervous System delivery. Magnesium Threonate can readily cross the Blood Brain Barrier and serve as a neurological cofactor in cognitive, mood and stress related functions, whilst also supporting magnesium levels in the entire body. Favourable taste and solubility properties further increase ease of administration and combining.



Best for patients that can benefit from combined nutritional support, particularly for conditions and symptoms associated with PMS, hormonal imbalances, mood irregularities and sleep issues.

RN Labs Tri-Factor provides a synergistic blend of key nutrient cofactors (zinc, B6, magnesium) in highly bioavaliable forms. Involved in hundreds of enzymatic processes, these cofactors taken together can support numerous biological processes, including neurotransmitter production, membrane fatty acid metabolism, detoxification and energy production.



While it contains both Calcium and Magnesium Citrates, RN Labs’ Cal:Mag formulation is primarily intended for facilitating balanced Calcium supplementation (for those who need Calcium, more so than Magnesium alone).

Magnesium is a necessary nutrient for the assimilation of Calcium into bones, as well as for activating Vitamin D in kidneys. Without the presence of adequate Magnesium, a high Calcium intake may increase the risk of arterial calcification (CVD) and Kidney Stones.


Magnesium Citrate

RN Labs Magnesium Citrate is a highly-absorbed citrate chelate form of magnesium.

Magnesium Citrate is considered by many practitioners as an affordable choice suitable for a wide range of conditions. Like all RN Labs products, it’s ultra pure hypoallergenic formulation that is free from synthetic preservatives, stearate lubricants and other commonly detrimental excipients means that it’s a safe and reliable option.


Mixed Mag Forte

This potent and innovative formula contains multiple forms of Magnesium for optimal full-body Magnesium support.

RN Labs’ Mixed Mag Forte Powder contains highly absorbable forms of Magnesium for optimal utilisation by various physiological systems. The presence of multiple chelators enhances and diversifies the affinity of the delivered magnesium to numerous tissues in the body.

  300mg of Elemental Mg per scoop!

  More convenient than capsules for high dosing

  Multiple Forms of Magnesium

  Facilitates diverse absorption mechanisms

  Supports multiple metabolic pathways

  Includes Orotate form for Cardiovascular Support

  Taurine provides additional cellular transport support

  Palatable ‘not-too-sweet’ sugar-free formula

  Easy to combine with other ingredients and formulas

Multiple Forms, Multiple Actions

The presence of multiple forms of Magnesium maximises the uptake potential in the body, due to the ability of various uptake mechanisms being utilised.

In addition to highly bio-available Magnesium Citrate, this formula includes Magnesium Orotate to further provide particular support for extracellular and Cardiovascular tissues, cardiac rhythm and maintaining normal blood pressure.

Taurine assists intracellular transport of Magnesium (especially when other intracellular mechanisms are compromised).