Life Extension
Life Extension Neuro-Mag Magnesium L-Threonate
Life Extension Neuro-Mag Magnesium L-Threonate supplies magnesium as Magtein, a patented magnesium L-threonate. Each serve of 3 vegetarian capsules provides 144 mg of elemental magnesium from 2,000 mg of magnesium L-threonate, so the 90 capsule bottle gives 30 daily serves. Life Extension notes on the label that this form has less of a laxative effect than other forms of magnesium.
Key features
- 144 mg elemental magnesium per 3 capsule serve
- 2,000 mg Magtein magnesium L-threonate per serve
- 30 serves per 90 capsule bottle
- Vegetarian capsules made from vegetable cellulose
- Label states this form has less of a laxative effect than other forms of magnesium
Nutrition information
Per 3 capsule serve (one daily serve).
| Nutrient | Per serve |
|---|---|
| Magnesium (elemental) | 144 mg |
| Magnesium L-threonate (Magtein) | 2,000 mg |
Ingredients
Magnesium L-threonate (Magtein). Other ingredients: vegetable cellulose (capsule), microcrystalline cellulose, stearic acid, vegetable stearate, silica.
How to use
Take 3 capsules daily, or as recommended by your healthcare practitioner. Read the entire label before use.
Good to know
- Do not exceed the recommended dose.
- Consult your doctor before use if you are being treated for a medical condition, or if you are pregnant or breastfeeding.
- Keep out of reach of children. Do not use if the outer seal is broken or damaged.
- Store tightly closed in a cool, dry place.
- Compare other forms in our magnesium range.
FAQs
How much magnesium is in one serve?
One serve is 3 capsules, which provides 144 mg of elemental magnesium from 2,000 mg of magnesium L-threonate. The rest of that weight is the threonate part of the compound, which is why the elemental figure is much lower than the compound weight.
How does 144 mg compare with daily magnesium needs?
The NIH lists recommended intakes of 400 to 420 mg a day for adult men and 310 to 320 mg for adult women, from all sources including food. It sets 350 mg a day as the upper limit for magnesium from supplements, so the 144 mg label dose sits below that.
Will it upset my stomach?
High intakes of magnesium from supplements can cause diarrhoea, nausea and cramping, according to the NIH. Life Extension states on the label that magnesium L-threonate has less of a laxative effect than other forms. Stick to the 3 capsule daily dose.
Is Neuro-Mag suitable for vegetarians?
The capsules are made from vegetable cellulose and the bottle is labelled as vegetarian capsules. The other ingredients are microcrystalline cellulose, stearic acid, vegetable stearate and silica. No allergen statement appears in the label text we checked.
Label details checked against the Life Extension label panel on 9 October 2026. Formulas can change, so always check the label on the product you buy.
Always read the label and follow the directions for use.
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Life Extension Neuro-Mag Magnesium L-Threonate
Life Extension Neuro-Mag Magnesium L-Threonate
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Life Extension Neuro-Mag Magnesium L-Threonate supplies magnesium as Magtein, a patented magnesium L-threonate. Each serve of 3 vegetarian capsules provides 144 mg of elemental magnesium from 2,000 mg of magnesium L-threonate, so the 90 capsule bottle gives 30 daily serves. Life Extension notes on the label that this form has less of a laxative effect than other forms of magnesium.
Key features
- 144 mg elemental magnesium per 3 capsule serve
- 2,000 mg Magtein magnesium L-threonate per serve
- 30 serves per 90 capsule bottle
- Vegetarian capsules made from vegetable cellulose
- Label states this form has less of a laxative effect than other forms of magnesium
Nutrition information
Per 3 capsule serve (one daily serve).
| Nutrient | Per serve |
|---|---|
| Magnesium (elemental) | 144 mg |
| Magnesium L-threonate (Magtein) | 2,000 mg |
Ingredients
Magnesium L-threonate (Magtein). Other ingredients: vegetable cellulose (capsule), microcrystalline cellulose, stearic acid, vegetable stearate, silica.
How to use
Take 3 capsules daily, or as recommended by your healthcare practitioner. Read the entire label before use.
Good to know
- Do not exceed the recommended dose.
- Consult your doctor before use if you are being treated for a medical condition, or if you are pregnant or breastfeeding.
- Keep out of reach of children. Do not use if the outer seal is broken or damaged.
- Store tightly closed in a cool, dry place.
- Compare other forms in our magnesium range.
FAQs
How much magnesium is in one serve?
One serve is 3 capsules, which provides 144 mg of elemental magnesium from 2,000 mg of magnesium L-threonate. The rest of that weight is the threonate part of the compound, which is why the elemental figure is much lower than the compound weight.
How does 144 mg compare with daily magnesium needs?
The NIH lists recommended intakes of 400 to 420 mg a day for adult men and 310 to 320 mg for adult women, from all sources including food. It sets 350 mg a day as the upper limit for magnesium from supplements, so the 144 mg label dose sits below that.
Will it upset my stomach?
High intakes of magnesium from supplements can cause diarrhoea, nausea and cramping, according to the NIH. Life Extension states on the label that magnesium L-threonate has less of a laxative effect than other forms. Stick to the 3 capsule daily dose.
Is Neuro-Mag suitable for vegetarians?
The capsules are made from vegetable cellulose and the bottle is labelled as vegetarian capsules. The other ingredients are microcrystalline cellulose, stearic acid, vegetable stearate and silica. No allergen statement appears in the label text we checked.
Label details checked against the Life Extension label panel on 9 October 2026. Formulas can change, so always check the label on the product you buy.
Always read the label and follow the directions for use.
Free standard shipping on orders of $99.99 AUD or more within Australia.
Orders under $99.99 ship for a flat $12.98 AUD.
Delivery estimates are shown at checkout. In-store pickup is available at our Melbourne stores.
Life Extension Neuro-Mag Magnesium L-Threonate
We'll email you once when this option is back online. You can also check stock at your nearest Supps247 store.
Done. We'll email you when it's back in stock.
Sorry, that didn't go through. Please check your email address and try again.
Life Extension Neuro-Mag Magnesium L-Threonate supplies magnesium as Magtein, a patented magnesium L-threonate. Each serve of 3 vegetarian capsules provides 144 mg of elemental magnesium from 2,000 mg of magnesium L-threonate, so the 90 capsule bottle gives 30 daily serves. Life Extension notes on the label that this form has less of a laxative effect than other forms of magnesium.
Key features
- 144 mg elemental magnesium per 3 capsule serve
- 2,000 mg Magtein magnesium L-threonate per serve
- 30 serves per 90 capsule bottle
- Vegetarian capsules made from vegetable cellulose
- Label states this form has less of a laxative effect than other forms of magnesium
Nutrition information
Per 3 capsule serve (one daily serve).
| Nutrient | Per serve |
|---|---|
| Magnesium (elemental) | 144 mg |
| Magnesium L-threonate (Magtein) | 2,000 mg |
Ingredients
Magnesium L-threonate (Magtein). Other ingredients: vegetable cellulose (capsule), microcrystalline cellulose, stearic acid, vegetable stearate, silica.
How to use
Take 3 capsules daily, or as recommended by your healthcare practitioner. Read the entire label before use.
Good to know
- Do not exceed the recommended dose.
- Consult your doctor before use if you are being treated for a medical condition, or if you are pregnant or breastfeeding.
- Keep out of reach of children. Do not use if the outer seal is broken or damaged.
- Store tightly closed in a cool, dry place.
- Compare other forms in our magnesium range.
FAQs
How much magnesium is in one serve?
One serve is 3 capsules, which provides 144 mg of elemental magnesium from 2,000 mg of magnesium L-threonate. The rest of that weight is the threonate part of the compound, which is why the elemental figure is much lower than the compound weight.
How does 144 mg compare with daily magnesium needs?
The NIH lists recommended intakes of 400 to 420 mg a day for adult men and 310 to 320 mg for adult women, from all sources including food. It sets 350 mg a day as the upper limit for magnesium from supplements, so the 144 mg label dose sits below that.
Will it upset my stomach?
High intakes of magnesium from supplements can cause diarrhoea, nausea and cramping, according to the NIH. Life Extension states on the label that magnesium L-threonate has less of a laxative effect than other forms. Stick to the 3 capsule daily dose.
Is Neuro-Mag suitable for vegetarians?
The capsules are made from vegetable cellulose and the bottle is labelled as vegetarian capsules. The other ingredients are microcrystalline cellulose, stearic acid, vegetable stearate and silica. No allergen statement appears in the label text we checked.
Label details checked against the Life Extension label panel on 9 October 2026. Formulas can change, so always check the label on the product you buy.
Always read the label and follow the directions for use.
Free standard shipping on orders of $99.99 AUD or more within Australia.
Orders under $99.99 ship for a flat $12.98 AUD.
Delivery estimates are shown at checkout. In-store pickup is available at our Melbourne stores.
Life Extension Neuro-Mag Magnesium L-Threonate
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