Life Extension Neuro-Mag Magnesium L-Threonate vs Magnesium Citrate 120 Tablets
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Life Extension Neuro-Mag Magnesium L-Threonate and Magnesium Citrate 120 Tablets.
Last verified: 07 Apr 2026 · Based on 123 reviews
Life Extension Neuro-Mag Magnesium L-Threonate scores 73.0/100 vs Magnesium Citrate 120 Tablets at 72.0/100. Life Extension Neuro-Mag Magnesium L-Threonate wins on ingredient quality, side effects, certifications. Magnesium Citrate 120 Tablets is stronger on effectiveness and value for money.
Which is better: Life Extension Neuro-Mag Ma... or Magnesium Citrate 120 Tablets?
Solgar Magnesium Citrate wins on value at £17.94 versus £37.90, with comparable overall scores (72 vs 73). Choose Life Extension Neuro-Mag if you specifically want cognitive and memory support — its patented Magtein form is uniquely researched for brain bioavailability, which Solgar's citrate form cannot match.
— AIScored Editorial Team
How Do the Scores Compare?
Life Extension Neuro-Mag Ma...
Life Extension
|
Magnesium Citrate 120 Tablets
Solgar
|
|
|---|---|---|
| Overall Score | 73.0 | 72.0 |
| Effectiveness | 73.0/100 |
76.0/100
Best
|
| Ingredient Quality |
86.0/100
Best
|
84.0/100 |
| Value for Money | 52.0/100 |
62.0/100
Best
|
| Side Effects |
76.0/100
Best
|
71.0/100 |
| Certifications |
80.0/100
Best
|
50.0/100 |
| Best Price | £37.90 Amazon UK → |
£17.94
Amazon UK →
Cheapest
|
| Price per Serving | £1.26 30 servings | N/A |
| Form | Capsules | tablet |
| Dose | 2000mg Magtein (144mg elemental Mg) | None |
| Third-Party Tested | ✓ Yes | ✗ No |
| Reviews Analysed | 68 | 55 |
Life Extension Neuro-Mag Magnesi...
Pros
- ✓Magtein (patented Mg L-threonate) is the most researched form for crossing the blood-brain barrier and supporting cognitive function
- ✓Reviewers consistently report improved memory, concentration, and reduced brain fog after several weeks of use
- ✓Sleep quality improvements frequently mentioned — easier to fall asleep, fewer nighttime awakenings
- ✓Clean formula: vegan capsules, no dairy, gluten, soy, or artificial flavours; third-party tested
Cons
- ✗Premium pricing with only 30 servings per bottle makes ongoing use costly compared to standard magnesium forms
- ✗High capsule load (3 per serving) due to low elemental magnesium yield of the L-threonate form
- ✗Some users report vivid dreams or mild sleep disruption, especially if taken close to bedtime
- ✗Effects are gradual — requires 2–4 weeks of consistent use before benefits are noticeable
Best For
Magnesium Citrate 120 Tablets
Pros
- ✓Highly bioavailable magnesium citrate form — better absorbed than oxide or carbonate
- ✓Consistently reported improvements in sleep quality and muscle relaxation
- ✓Effective for muscle cramps, PMS symptoms, and menopausal discomfort
- ✓Vegan, gluten-free, and kosher certified with clean excipients
Cons
- ✗Tablet size is unusually large — multiple reviewers report difficulty swallowing and choking risk
- ✗No third-party analytical testing (e.g., Informed Sport, NSF)
- ✗Premium price point relative to generic magnesium citrate alternatives
- ✗High single-serving dose (400mg) may cause loose stools in sensitive individuals
Best For
What does the data say about Life Extension Neuro-M... vs Magnesium Citrate 120 Tablets?
These two magnesium supplements use completely different forms of the mineral, and that distinction matters more than any other factor here. Life Extension's Neuro-Mag (£37.90) uses Magtein, a patented magnesium L-threonate that's specifically designed to cross the blood-brain barrier — making it genuinely useful for cognitive support rather than general health maintenance. Solgar's Magnesium Citrate (£17.94) uses citrate, a well-absorbed form that works systemically, particularly for muscles, sleep, and hormonal symptoms. Neither is "better" in absolute terms; they're built for different jobs.
If you're over 50 and noticing memory lapses, or you work in a mentally demanding role and want targeted brain support, Neuro-Mag earns its premium — though 30 servings per bottle at that price is genuinely steep, and you'll be swallowing three capsules daily. Solgar suits people dealing with muscle cramps, poor sleep, or PMS far better, and at nearly half the price with a higher effectiveness score (76 vs 73), it offers considerably better everyday value.
Practically speaking, Neuro-Mag is third-party tested — reassuring for a pricier supplement. Solgar lacks that certification, and several reviewers flag the tablets as uncomfortably large. Worth knowing before you order.
Life Extension Neuro-Mag Magnesium L-Threonate uses Magtein, the patented and clinically studied form of magnesium L-threonate developed specifically to cross the blood-brain barrier and support synaptic density.
What are the key differences?
Frequently Asked Questions
Which is better, Life Extension Neuro-Mag Magnesium L-Threonate or Magnesium Citrate 120 Tablets? ▼
Is Life Extension Neuro-Mag Magnesium L-Threonate worth the price compared to Magnesium Citrate 120 Tablets? ▼
Which has fewer side effects? ▼
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What the Data Says
Why is magnesium oxide less effective than glycinate?
Oxide scores 21 points lower than glycinate in our testing — and it's not close on ingredient quality either. Across 17 magnesium products in our database, glycinate averages 74.3/100 overall. Oxide sits at 53/100. That's a gap you can feel.
The ingredient quality difference is even starker: 83.3 for glycinate vs 37.0 for oxide. A 46.3-point gap. The best glycinate in our database, Solgar Magnesium Glycinate 400mg, scores 80/100 overall with 88/100 on ingredient quality. The oxide product (Nature Made) manages just 52 on effectiveness and 37 on ingredient quality.
The reason is bioavailability. Magnesium oxide has roughly 4% absorption — most of it passes straight through your gut unused. Glycinate is chelated (bound to the amino acid glycine), which your intestines absorb much more efficiently. You also get fewer digestive side effects, since unabsorbed magnesium in the gut is what causes the laxative effect oxide is known for.
Oxide is cheap, which is why it's still everywhere. But cheap per pill means nothing if your body can't use it. Glycinate or citrate (avg 74.5/100) are both better choices.
Which form of magnesium is best for sleep, anxiety, or muscle cramps?
Glycinate for sleep and anxiety. Citrate for cramps. L-threonate for brain function. Each form has a different strength, and our scores back this up.
Sleep and anxiety → Glycinate. Averaging 74.3/100 across our database, with the best (Solgar Glycinate 400mg) hitting 80/100. Glycine, the amino acid it's bound to, acts as an inhibitory neurotransmitter — it calms your nervous system on its own. That's a two-for-one benefit you don't get from other forms. Thorne Bisglycinate (74/100) is another solid option at a lower dose.
Muscle cramps → Citrate. Averaging 74.5/100 overall with 85.0 on ingredient quality. Citrate absorbs well and is gentler on your wallet than glycinate. Solgar Citrate leads the pack at 77/100. If cramps are your main issue, this is the practical choice.
Brain function → L-Threonate. Life Extension Neuro-Mag scores 73/100. This is the only form shown to meaningfully raise magnesium levels in the brain by crossing the blood-brain barrier. It's pricier, but nothing else does what it does.
All-round absorption → Doctor's Best High Absorption tops our entire magnesium database at 82/100 overall (83 effectiveness, 88 ingredient quality) using chelated magnesium.
The one form to skip? Oxide at 53/100. Its 4% absorption rate makes it a poor choice no matter what you're taking it for.
Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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