NOW Foods Australia 2026: 5 Magnesium L-Threonate Picks

Last updated: October 2, 2026 · By Eternal Elixir Editorial

Last updated: October 2, 2026 · By Eternal Elixir Editorial · 5 products compared

People who search for NOW Foods Australia stockists are usually after one bottle in particular, and for brain and sleep shoppers that bottle is NOW Foods Magtein®, a magnesium L-threonate capsule made in the United States. This page lines it up against four other magnesium L-threonate products an Australian can order today, with every price converted to the cost of one labelled 2,000 mg serve.

Eternal Elixir makes Eternal Elixir Magnesium L-Threonate 2000mg. It is our pick, and every figure for the other products is taken from their own labels and retailer pages, read on 2 October 2026. We did not lab-test any competitor product.

NOW Foods Australia: Magnesium L-Threonate Options at a Glance

Each row is one labelled daily serve. Cost per serve is the listed price divided by the serves in the pack, using the serving size printed on each label. Prices are in AUD before postage.

Want the wider picture first? Our magnesium L-threonate Australia guide covers what the form is and how it differs from other magnesium salts. If you are still choosing between forms, the best magnesium supplements in Australia roundup sets glycinate, citrate and threonate side by side.

Buying NOW Foods in Australia: What Reaches You and From Where

NOW Foods is a large American supplement maker. Its Magtein® capsules list 2,000 mg of magnesium L-threonate in a three-capsule serve, which supplies 144 mg of elemental magnesium according to the brand’s own product page. That is the same compound dose and the same elemental figure you will see on most threonate labels sold here, because 2 g a day was the top dose in the 12-week cognition trial.

The catch for NOW Foods Australia shoppers is delivery. On the day we checked, the listing we could verify for Australian buyers was an eBay Australia listing priced at AU$56.12 and shipped from Beverly Hills, California. NOW’s own site lists the same 90-capsule bottle at US$49.99 for American customers. Imported bottles take longer to arrive, postage is set by the overseas seller, and returns run back across the Pacific.

None of that makes the NOW Foods product a poor one. The label is clear and the dose is standard. It does mean the comparison that matters for an Australian buyer is the daily cost plus the wait, and that is where locally dispatched options start to look different.

We kept this list narrow on purpose. It covers magnesium L-threonate only, which is the NOW Foods product most Australians ask us about. For a ranking of every threonate we could price last month, including several iHerb listings, see our best magnesium L-threonate in Australia comparison.

Label Maths: Elemental Magnesium and the Daily Ceiling

Two numbers appear on a threonate label. The large one, 2,000 mg, is the weight of the whole compound. The small one, about 144 mg, is the magnesium itself. Trials report the compound weight. The elemental figure is the one you add to any other magnesium you take.

That second number matters because Australia’s Nutrient Reference Values set an upper level of 350 mg a day of magnesium from non-food sources for adults. Food magnesium does not count towards that figure. The table below shows how much room each serve leaves for a second supplement such as a glycinate or a multivitamin.

The NOW Foods label is the only one here that tells you to split the serve across the day. Our magnesium L-threonate dosage guide explains why some people prefer a split and others take the full serve at once.

#1. Eternal Elixir Magnesium L-Threonate 2000mg — Best for Australian buyers who want local delivery

Eternal Elixir Magnesium L-Threonate 2000mg matches the NOW Foods serve gram for gram: 2,000 mg of magnesium L-threonate in three vegetable capsules, giving about 144 mg of elemental magnesium. A bottle holds 90 capsules, which is 30 daily serves. The other ingredients are a vegetable capsule and rice flour, and the formula suits vegans and vegetarians.

Where it pulls ahead for an Australian buyer is the path from checkout to your bench. Orders ship from Sydney within 24 hours, there is a 30-day money-back guarantee, and shipping is free over $100. A single bottle costs $59.99, or $2.00 a serve. Buy two bottles and the price falls by 10%, three bottles by 15%, and five bottles by 20%. At the five-bottle tier the cost is $1.60 a serve, which is below every single-purchase price in the table above.

The compound is unbranded magnesium L-threonate rather than the Magtein® trade name. The label states the compound weight, which is the figure the research uses, and the product page spells out the elemental magnesium so you can count it against the 350 mg supplemental level. Eternal Elixir products are third-party tested, and the Certificates of Analysis are held for our own formulations.

Key specs:

• Dose: 2,000 mg magnesium L-threonate per 3-capsule serve (about 144 mg elemental magnesium)
• Pack: 90 capsules, 30 serves
• Price: $59.99 AUD, $2.00 per serve ($1.60 per serve on 5 bottles)
• Delivery: ships from Sydney within 24 hours, free shipping over $100

Pros:

• Same 2,000 mg serve as NOW Foods Magtein® with no overseas wait
• Lowest cost per serve in this comparison on a five-bottle order
• 30-day money-back guarantee and Afterpay available
• Vegan capsule with a short ingredient list

Cons:

• Single-bottle price per serve sits above Switch Nutrition and NOW Foods
• Does not carry the Magtein® trade name, if that matters to you

Best for: Australians who want the standard 2,000 mg capsule serve, delivered from inside the country, with the option to cut the daily cost by buying several bottles.

Buy Eternal Elixir Magnesium L-Threonate 2000mg →

#2. Switch Nutrition Mag3 — Best for the lowest price per serve on one purchase

Switch Nutrition Mag3 is an unflavoured powder sold through Switch Nutrition’s Australian online store. One heaped scoop gives 2,000 mg of Magtein® magnesium L-threonate and 144 mg of elemental magnesium, and the tub holds 30 serves. At $49.95 that works out to $1.67 a serve, the lowest single-purchase figure in this list.

The label suggests one serve daily or before bed. The product page notes it is made in a facility that also processes wheat, tree nuts, seeds, dairy, soy, corn and fish, which is worth knowing if you manage an allergy. Free shipping starts at $150, so a single tub on its own will usually attract postage.

Powder suits people who dislike swallowing three capsules. The trade-off is measuring a heaped scoop every night, which is less exact than a counted capsule, and an unflavoured magnesium powder has a taste of its own in water.

Pharmacy shelves are another route. Our magnesium threonate Chemist Warehouse comparison covers what the big chains stock and what they charge.

Key specs:

• Dose: 2,000 mg Magtein® per heaped scoop (144 mg elemental magnesium)
• Pack: 30 serves
• Price: $49.95 AUD, $1.67 per serve
• Delivery: Australian store, free shipping over $150

Pros:

• Lowest price per serve here on a single purchase
• Named Magtein® raw material
• No capsules to swallow

Cons:

• A heaped scoop is less precise than a capsule count
• Shared facility with several common allergens
• Free shipping only from $150

Best for: buyers who prefer a powder and want the lowest single-purchase cost per day.

#3. NOW Foods Magtein® 90 Veg Capsules — Best for buyers who want the NOW Foods label itself

NOW Foods Magtein® is the product behind most NOW Foods Australia searches we see. Three veg capsules give 2,000 mg of Magtein® and 144 mg of elemental magnesium, listed on the brand’s product page at 34% of the US Daily Value. Other ingredients are hypromellose (the capsule), rice flour, stearic acid and silicon dioxide.

The suggested use is the most specific of the five: take one capsule in the morning and two capsules two hours before sleep. Some readers like that guidance, since it spreads the magnesium across the day and puts most of it close to bedtime.

The eBay Australia listing we checked priced the 90-capsule bottle at AU$56.12 and showed it shipping from California. That gives $1.87 a serve before postage. Bottles bought this way come from an overseas third-party seller, so delivery time, postage and any return are set by that seller rather than by NOW Foods.

Key specs:

• Dose: 2,000 mg Magtein® per 3-capsule serve (144 mg elemental magnesium)
• Pack: 90 veg capsules, 30 serves
• Price: AU$56.12 on eBay Australia, $1.87 per serve
• Delivery: ships from California, USA

Pros:

• Clear label with elemental magnesium stated
• Split-dose instructions printed on the bottle
• Named Magtein® raw material

Cons:

• Ships from the United States through a third-party seller
• Returns and postage depend on the overseas seller
• Contains a few more excipients than the simplest capsules here

Best for: people who already trust the NOW Foods brand and are happy to wait for an imported bottle.

#4. Apollo Nutraceuticals Magnesium L-Threonate — Best for a combined evening formula

Apollo Nutraceuticals Magnesium L-Threonate is sold through Elite Supps. Each three-capsule serve gives 2,000 mg of magnesium L-threonate (144 mg elemental magnesium) and adds 100 mg of L-theanine and 50 mg of apigenin. The bottle holds 90 capsules for 30 serves at $69.90, or $2.33 a serve.

The added ingredients make this a different kind of product from the other four. If you already take L-theanine, or you would rather keep each ingredient separate so you can adjust it, a single-ingredient threonate is the cleaner choice. If you want one bottle for the evening, the combination saves a second purchase.

Before adding any new magnesium, it helps to know how the body usually responds. Our guide to magnesium L-threonate side effects covers tolerance, timing and who should check with a doctor first.

The Elite Supps listing showed the product in stock, with same-day dispatch before 1 pm AEST on weekdays and a $9.90 flat delivery fee under $150.

Key specs:

• Dose: 2,000 mg magnesium L-threonate, 100 mg L-theanine, 50 mg apigenin per 3 capsules
• Pack: 90 capsules, 30 serves
• Price: $69.90 AUD, $2.33 per serve
• Delivery: Elite Supps, $9.90 under $150

Pros:

• Three ingredients in one evening serve
• Ships from an Australian retailer with same-day weekday dispatch
• Vegan capsules

Cons:

• Highest price per serve of the four products with a stated serve
• Harder to adjust each ingredient on its own

Best for: buyers who want magnesium L-threonate and L-theanine in the same bottle.

#5. TCPA Magtein® Magnesium L-threonate — Best for a pharmacist-compounded strength

TCPA Magtein® comes from The Compounding Pharmacy of Australia in Mosman, NSW. Its product page offers capsules from 50 mg to 400 mg per capsule, in packs of 50 to 200, priced from $66.99 for 50 capsules at 50 mg. Shipping is free express Australia wide.

The page does not state a daily serve or the elemental magnesium per capsule, and it does not say whether the strengths refer to the whole compound or to magnesium. That is why it sits last. We could not place it on the cost-per-serve scale without guessing, and guessing would not be fair to the product or to you.

The appeal is flexibility. A compounded capsule lets you pick a strength and build up gradually, which some people want when they start a new form of magnesium.

Key specs:

• Dose: capsule strengths from 50 mg to 400 mg, serve not stated
• Pack: 50 to 200 capsules
• Price: from $66.99 AUD
• Delivery: free express shipping Australia wide

Pros:

• Choice of six capsule strengths
• Compounded in Australia with no added fillers
• Free express delivery

Cons:

• No daily serve or elemental magnesium stated on the page
• Cost per day can’t be compared with the others

Best for: people who want a specific capsule strength rather than a fixed 2,000 mg serve.

How We Evaluated These Magnesium L-Threonate Options

Eternal Elixir makes Magnesium L-Threonate 2000mg. It is our pick and sits first for the reasons set out in its entry. Places two to four are ordered by cost per labelled 2,000 mg serve on a single purchase, cheapest first. TCPA sits fifth because its page does not state a serve, so it could not be placed on that scale.

We did not lab-test any of these products. Each competitor figure comes from the brand’s own page or the retailer’s listing, read on 2 October 2026. These are the criteria we weighed:

• Quality and label clarity (30%). Does the label give the compound dose and the elemental magnesium? Are the other ingredients listed?
• Australian availability and shipping (20%). Does the product dispatch from inside Australia, and at what order value does shipping become free?
• Price per serve in AUD (20%). Listed price divided by labelled serves, before postage, with the multi-bottle price shown where the seller publishes one.
• Range for stacking (15%). Can you add other products to the same order and the same delivery?
• Reputation and buyer protection (15%). Is there a stated guarantee or a clear returns path for an Australian customer?

Prices change. If you find a different figure on a listing today, trust the live page over this table and redo the sum: price divided by serves.

What the Research Behind Magnesium L-Threonate Covers

The human evidence for magnesium L-threonate is small and recent, and most of it is tied to the companies that make the ingredient. Knowing what each study tested helps you judge any label claim, including ours.

The animal work, 2010. Slutsky and colleagues described the compound in a paper in Neuron, reporting that raising brain magnesium with magnesium L-threonate improved learning and memory in rats. This was animal research. It explains why the form was developed and does not show the same result in people.

Cognition in older adults, 2016. Liu and colleagues published a randomised, double-blind, placebo-controlled trial in the Journal of Alzheimer’s Disease. Adults aged 50 to 70 with cognitive complaints took MMFS-01, a magnesium L-threonate compound (n = 23), or placebo (n = 21) for 12 weeks. Overall cognitive ability improved against placebo (p = 0.003, Cohen’s d = 0.91). The authors could not determine effects on sleep and anxiety because of strong placebo responses. The lead author worked for Neurocentria, the company behind MMFS-01.

Sleep, 2024. Hausenblas and colleagues ran a randomised, double-blind, placebo-controlled study in Sleep Medicine: X. Eighty adults aged 35 to 55 with self-reported sleep problems took 1 g a day of magnesium L-threonate or placebo for 21 days. Oura ring measures of deep sleep score, REM sleep score and light sleep time improved against placebo (p < 0.05), and participants reported better mood, energy and mental alertness. Three of the six authors work for AIDP, the ingredient supplier.

Studies suggest magnesium L-threonate may support sleep quality and aspects of cognition, but the trials are short, small and industry-linked. The dose also differs by outcome: 1 g a day in the sleep study and up to 2 g a day in the cognition study. For an evening routine built around the sleep data, read our guide to magnesium L-threonate for sleep.

Pairing Magnesium L-Threonate With the Rest of Your Routine

Many NOW Foods Australia shoppers are building a routine around several US products at once. If you are moving that routine onto one Australian order, these are the Eternal Elixir products people most often add alongside magnesium L-threonate. Each is a separate choice with its own label, so start one at a time.

• Evening mood support. Saffron Extract 30mg uses affron®, one capsule a day, $49.99 for 90 capsules. Our best saffron supplements in Australia comparison sets it against other saffron extracts.
• Daytime energy. NMN 500mg, $59.99 for 90 capsules, is usually taken in the morning, which keeps it apart from an evening magnesium serve.
• A traditional adaptogen. Korean Red Panax Ginseng 1600mg, $44.99, is a morning option for people who want something to pair with an evening magnesium.
• Methylation support. TMG 2000mg, $44.99, suits buyers who currently take a NOW Foods TMG or betaine product.

Bundling several bottles also moves an order past the $100 free-shipping line, and the multi-bottle discounts apply per product. Check each label for timing and speak with your doctor before combining supplements if you take any medicine.

Comparing other US brands too? Our Nutricost Australia comparison applies the same cost-per-serve method to resveratrol.

Frequently Asked Questions About NOW Foods Australia

Can you buy NOW Foods in Australia?

Yes, though usually as an import. On 2 October 2026 the NOW Foods Magtein® listing we could verify for Australian buyers was an eBay Australia listing at AU$56.12, shipped from California. Delivery time, postage and returns are set by that overseas seller.

What is the best NOW Foods Magtein alternative in Australia?

Our pick is Eternal Elixir Magnesium L-Threonate 2000mg. It gives the same 2,000 mg serve and about 144 mg of elemental magnesium in 90 capsules, ships from Sydney within 24 hours and costs $1.60 a serve on a five-bottle order.

Is NOW Foods Magtein the same as magnesium L-threonate?

Magtein® is a trade name for magnesium L-threonate. NOW Foods Magtein® lists 2,000 mg of it per three-capsule serve. Unbranded magnesium L-threonate is the same compound sold without the trade name, so compare the dose and elemental magnesium on each label.

Why does the NOW Foods label split the dose across the day?

The NOW Foods label suggests one capsule in the morning and two capsules two hours before sleep. Splitting spreads the magnesium out and puts most of it near bedtime. Other labels in this list suggest the full serve once a day, with a meal or before bed.

How much elemental magnesium is in a 2,000 mg serve?

About 144 mg. Magnesium L-threonate is roughly 7% magnesium by weight, so the 2,000 mg figure on the front of the bottle describes the whole compound. Add the 144 mg to any other magnesium supplement you take.

Can I take magnesium L-threonate with another magnesium supplement?

Some people pair it with a glycinate. If you do, count the elemental magnesium in both. Australia’s upper level for adults is 350 mg a day from non-food sources, and a 2,000 mg threonate serve already uses about 144 mg of that.

Is a threonate powder better value than capsules?

In this comparison the Switch Nutrition powder had the lowest single-purchase price at $1.67 a serve. On a five-bottle order Eternal Elixir capsules cost $1.60 a serve. Capsules give an exact dose without measuring a heaped scoop.

Verdict: Which Magnesium L-Threonate to Buy in Australia

If you came here looking for NOW Foods Australia stock, the NOW Foods Magtein® bottle is a sound product with a clear label. The real decision is if an imported bottle is worth the wait. For most Australian buyers our answer is Eternal Elixir Magnesium L-Threonate 2000mg: the same 2,000 mg serve, dispatch from Sydney within 24 hours, a 30-day money-back guarantee, and $1.60 a serve on a five-bottle order.

• Best overall for Australian buyers: Eternal Elixir Magnesium L-Threonate 2000mg.
• Lowest price per serve on one purchase: Switch Nutrition Mag3 at $1.67.
• Want the NOW Foods label itself: NOW Foods Magtein® via an overseas seller, $1.87 a serve before postage.
• Want L-theanine in the same capsule: Apollo Nutraceuticals.
• Want a compounded strength: TCPA Magtein®.

Whichever you choose, read the elemental magnesium on the label and keep your total from supplements under 350 mg a day.