Switch Nutrition Mag3
Switch Nutrition Mag3
Switch Nutrition Mag3
Switch Nutrition In Stock

Switch Nutrition Mag3 Powder 60g

Magnesium L-Threonate formulation

Key Benefits

L-Threonate crosses the blood-brain barrier

Supports memory, focus & cognitive function

Promotes relaxation & quality sleep

$69.95

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$69.95

Always read the label and follow the directions for use. Read the warnings before purchase.

What is Switch Nutrition Mag3?

Switch Nutrition Mag3 contains 100% pure Magtein® Magnesium L-Threonate—a unique form of magnesium specifically designed to support brain health and cognitive function.

Unlike other forms of magnesium, L-Threonate (made by combining magnesium with Threonic Acid, a metabolite of Vitamin C) efficiently crosses the blood-brain barrier.

This makes it particularly effective for cognitive support, including memory, focus, mental clarity, and learning ability.

Magnesium is essential for over 300 enzymatic reactions in the body, but most forms don't effectively reach the brain.

Mag3 delivers magnesium where it matters most for cognitive function.

Each serve (1 heaped scoop / 2000mg) contains:

Magtein® Magnesium L-Threonate - A patented, extensively researched form of magnesium designed specifically for brain health.

Magtein® is unique in its ability to effectively cross the blood-brain barrier, supporting brain magnesium levels which may assist in maintaining cognitive function over time.

Key mechanisms:
- Enhances synaptic plasticity (the brain's ability to form new connections)
- Supports healthy neuronal activity
- Promotes GABA receptor activity for calm focus
- Acts as an NMDA antagonist to reduce overstimulation

No added flavours, sweeteners, or fillers.

Unflavoured powder mixes easily into water or any beverage.

Adults: Consume 1 serve (1 heaped scoop / 2000mg) daily.

Can be taken any time of day, or before bed for sleep support.

Mix with water or your favourite beverage.

Unflavoured, so it dissolves easily without affecting taste.

Consistency is key for cognitive benefits.

Although Mag3 has no added gluten, dairy, or soy containing ingredients, it is manufactured in a facility that processes wheat, tree nuts, seeds, dairy, soy, corn, and fish.

Individuals with medical conditions, on medication, or with severe allergies or sensitivities should consult their healthcare provider prior to use.

Not intended or recommended for children under 15 years of age, pregnant or lactating women.

"Not all magnesium supplements are created equal — and the difference really comes down to where in the body the magnesium actually ends up. Standard forms like citrate or glycinate are great for muscle relaxation and sleep, but they don't reliably reach the brain. Magnesium L-threonate was specifically developed to change that, and it's the only form with clinical research showing it can effectively support brain magnesium levels. That makes it particularly relevant for focus, memory, and mental clarity."

— Isabella Truong, Pharmacist

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  • 2 – 7 business days metro
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Orders over $199 (after discounts) - Free*

  • 2 – 14 business days *(Standard shipping)

We aim to process all orders within 2–3 business days of your order being placed.

Orders placed on weekends or NSW public holidays will be processed on the next business day.

Delivery timeframes begin once your order has been dispatched. Actual times may vary due to courier network delays or regional location.

For more detailed information, see our Shipping & Delivery Policy.

Frequently asked question

Most magnesium forms have difficulty crossing the blood-brain barrier, limiting their cognitive benefits. Magnesium L-Threonate was specifically developed by MIT scientists to address this challenge. Research shows it effectively increases brain magnesium levels, supporting synaptic plasticity, memory formation, and cognitive function. While other forms (like glycinate or citrate) are excellent for muscles and general health, L-Threonate is the targeted choice for brain health.

Many users report improvements in focus, attention, and mental clarity with Magnesium L-Threonate. Magnesium plays crucial roles in neurotransmitter function and brain energy metabolism. While it's not a treatment for ADHD, supporting optimal brain magnesium levels may help with attention and reducing brain fog. Customer reviews frequently mention benefits for focus and productivity.

Yes, many users report improved sleep quality with Mag3. Magnesium is a natural GABA agonist (promoting calm) and NMDA antagonist (reducing overstimulation), both of which support relaxation and sleep. Research in elderly insomnia sufferers showed benefits from magnesium L-threonate supplementation. It also supports melatonin synthesis, the primary sleep hormone.

Individual responses vary, but many users report noticing improvements in focus and mental clarity within 1-2 weeks. More significant cognitive benefits may develop over 4-8 weeks of consistent use as brain magnesium levels optimise. Customer reviews frequently mention clearer thinking, less brain fog, and improved ability to form sentences within the first few weeks. Consistent daily use produces the best results.