Magnesium L-Threonate Powder

Regular price $129.95 AUD

Key Benefits

  • Muscle relaxation
  • Bone & heart support
  • Sleep & calm support
View full range — RN Labs

Treatment Supply

💗 Australian-owned • Independent wellness

Practitioner-grade support. Always read the label and follow the directions for use.

Shipping & Dispatch $19.95 flat rate · Free over $200

Australia Post — fully trackable.


  • Free shipping: $200+
  • Flat rate: $19.95 Australia-wide

Dispatch: usually within 1–3 business days

Nature's Answer to True Relaxation

Unveil the power of one of nature's most revered minerals with our Magnesium Citrate supplement. Renowned for its role in over 300 enzymatic reactions, magnesium is indispensable for heart, bone, and muscle health. Our Magnesium Citrate provides a bioavailable form of this essential mineral, ensuring your body receives the optimum benefits seamlessly. 

Muscle relaxation

Bone & heart support

Sleep & calm support

  • Highly Bioavailable: Magnesium Citrate is one of the most easily absorbed forms of magnesium, ensuring efficient uptake by the body.
  • Pure & Potent: Formulated without additives or fillers to provide just the pure essence of Magnesium Citrate.
  • Vegan & Gluten-Free: A perfect fit for those with specific dietary needs.
  • Non-GMO: Ethically sourced and devoid of genetically modified organisms.

Pure Pharmaceutical-Grade Magnesium Threonate

DENSITY: 2.5 ml = 1.25g (100mg Mg) – (0.5 g/ml)

  • For adults, take as directed by a healthcare professional. Start with smaller doses and gradually increase as needed, especially if used for digestive regularity.
  • If pregnant, consult your healthcare practitioner before using this product.
  • Gas, bloating, or diarrhea may occur in some individuals taking magnesium supplements.
  • This can occur at varying amounts depending on the individual and is resolved when the amount is reduced.
  • Always read the label.
  • Dietary supplements should not replace a balanced diet.
  • If symptoms persist, worsen or change unexpectedly, consult your healthcare professional.
Magnesium Support FAQsCommon questions about magnesium supplements
What does magnesium help support?

Magnesium is an essential mineral involved in normal muscle function, nervous system function, energy production, bone health and electrolyte balance. Many people choose magnesium products to support everyday wellbeing, muscle relaxation, stress balance, sleep routines or active lifestyles, depending on the formula and their individual needs.

Which type of magnesium should I choose?

Different magnesium forms may suit different people. Magnesium glycinate is often chosen for gentle daily support, magnesium citrate may suit those wanting a more bowel-active form, magnesium malate is often used in energy and muscle support formulas, and magnesium threonate is commonly positioned for brain and nervous system support. The best option depends on your needs, tolerance and the full product formula.

What is the difference between magnesium glycinate and magnesium citrate?

Magnesium glycinate is magnesium bound to glycine and is commonly chosen when people want a gentle, well-tolerated magnesium option. Magnesium citrate is magnesium bound to citric acid and may have a stronger bowel effect in some people. If you are sensitive to digestive changes, start carefully and follow the product label.

Why do some magnesium products affect bowel movements?

Some forms of magnesium can draw water into the bowel or have a stronger digestive effect, especially at higher amounts. This is more common with forms such as magnesium citrate or oxide. If loose stools occur, consider reducing the dose, changing the timing, or choosing a gentler magnesium form after checking suitability.

Can I take magnesium with other supplements?

Magnesium is often found alongside nutrients such as zinc, calcium, vitamin D, B vitamins or electrolytes. Be careful when combining multiple products, as you may double up on magnesium or other minerals. Check the full ingredient panels and speak with a qualified health professional if you are unsure.

Can magnesium be taken with medication?

Magnesium may not suit all medicines and can affect the absorption of some medications if taken too closely together. This may include certain antibiotics, thyroid medication, osteoporosis medicines or other prescribed treatments. If you take medication, ask your doctor or pharmacist about suitability and spacing.

Is magnesium suitable during pregnancy or breastfeeding?

Some magnesium products may be suitable during pregnancy or breastfeeding, but this depends on the form, dose and full formula. Pregnancy and breastfeeding are times when supplement suitability matters, so check with your doctor, midwife, pharmacist or qualified health professional before use.

Can I take more than one magnesium product at the same time?

Use caution when combining magnesium products. Powders, capsules, electrolyte formulas, sleep formulas and multinutrient products may all contain magnesium. Taking several together can increase your total magnesium intake and may cause digestive discomfort or other unwanted effects.

What does “elemental magnesium” mean?

Elemental magnesium refers to the actual amount of magnesium provided by the compound. For example, a product may list magnesium glycinate, citrate or malate, but the elemental magnesium amount tells you how much magnesium the product contributes. This is useful when comparing products.

Who should be cautious with magnesium supplements?

People with kidney disease, diagnosed medical conditions, medication use, pregnancy, breastfeeding, or a history of mineral imbalance should seek professional advice before using magnesium supplements. Magnesium from food is generally different from concentrated supplemental intake, so label directions matter.

Is this information a replacement for medical advice?

No. This information is general only and does not replace personalised medical advice. If you are pregnant, breastfeeding, taking medication, managing a diagnosed condition, shopping for a child, or unsure which magnesium product suits you, speak with a qualified health professional before use.