Head to head · Sleep & Stress
Life Extension Neuro-Mag Magnesium L-Threonate vs Natrol Melatonin Fast Dissolve Tablets
Natrol scores higher overall (7.8 vs 7.2 out of 10), mainly on efficacy, value and experience.
Updated September 2026 from our full reviews · How we score
A best-selling Magtein supplement at the full 2 g trial dose. Sleep evidence is early and industry-funded, and at about $1 a day it costs far more than other magnesium.
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Cheap, strawberry-flavored melatonin that melts on the tongue. The best-selling 5 mg strength is more than most adults need; the 1 mg or 3 mg version is a smarter start.
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We may earn a commission when you buy through these links — it never affects our scores. How we make money
The short answer
Choose Life Extension if…
- People curious about Magtein for sleep and focus
- Those who get loose stools from other magnesium forms
- Shoppers who want a vegetarian, single-ingredient capsule
Choose Natrol if…
- Occasional sleeplessness or jet lag
- People who dislike swallowing pills
- Budget-conscious buyers
- You care most about efficacy, value, experience
- You want the lower cost per serving ($0.11)
Side by side
| Neuro-Mag Magnesium L-Threonate | Melatonin Fast Dissolve Tablets | |
|---|---|---|
| Our score | 7.2 / 10 | 7.8 / 10 |
| Efficacy (30%) | 6.8 | 7.2 |
| Quality & Purity (25%) | 7.5 | 7.3 |
| Value (20%) | 6.5 | 8.8 |
| Experience (15%) | 8.0 | 8.6 |
| Transparency (10%) | 8.2 | 8.0 |
| Form | Capsule | Tablet |
| Serving | 3 vegetarian capsules30 servings per container | 1 tablet150 servings per container |
| Price per serving | $1.05 | $0.11 |
| Testing & certifications | cGMP facilityThird-party tested | cGMP facilityThird-party tested |
| Dietary | Vegetarian, Gluten-free, Non-GMO | Vegetarian, Dairy-free, Non-GMO |
| Key ingredients |
|
|
| Flavors | — | 3 (Strawberry, Citrus, Mint) |
| Creator video reviews | 5 | 4 |
Pros and cons
Neuro-Mag Magnesium L-Threonate
- 2,000 mg Magtein per serving, the same daily dose used in the most recent clinical trial
- Single-ingredient formula with a full, simple label
- 144 mg elemental magnesium stays well below the 350 mg supplemental upper limit
- Vegetarian, gluten-free and non-GMO capsules
- buyers frequently report better sleep and a calmer mind
- Sleep evidence rests on two small, industry-funded trials with mixed objective results
- About $1.05 per serving at list price, several times the cost of magnesium glycinate
- Three capsules per day, and some buyers report cramps
- No NSF, USP or similar product certification; certificates of analysis only on request
Melatonin Fast Dissolve Tablets
- About $0.11 per tablet at the brand's list price for 150 count
- Single-ingredient formula with no proprietary blend
- Dissolves in the mouth without water; buyers consistently praise the strawberry taste
- The same tablet comes in 1 mg and 3 mg, making it easy to step down to lower, evidence-aligned doses
- Made under cGMPs with batch testing for potency, microbes and heavy metals
- 5 mg is above the 1-3 mg range sleep experts commonly suggest; headaches are the side effect buyers mention most
- Label lists wheat and soy, so it is unsuitable for celiac disease or soy allergy
- No USP, NSF or other named third-party certification, and no batch certificates of analysis on the product page
- Sweetened with xylitol, which is toxic to dogs, so store it out of pets' reach
Our verdicts
Neuro-Mag Magnesium L-Threonate
Neuro-Mag is a clean, accurately dosed version of Magtein from an established brand, and many buyers say it helps them sleep and think more clearly. The research behind magnesium L-threonate for sleep is still small and industry-funded, so we see it as a reasonable but expensive experiment rather than a proven sleep aid. If you simply want more magnesium, cheaper forms deliver more of the mineral per dollar.
Full review
Melatonin Fast Dissolve Tablets
Natrol Fast Dissolve is an inexpensive, transparent and pleasant way to take melatonin, and buyers largely report that it helps them fall asleep. Our reservation is the dose: 5 mg is more than most adults need, so we would start with Natrol's 1 mg or 3 mg tablets and only move up if a lower dose does nothing. Skip it if you avoid wheat or soy.
Full review
What creators say
Questions people ask
Is Life Extension better than Natrol?
Which is cheaper per serving, Life Extension or Natrol?
Who should choose Life Extension over Natrol?
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