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Life Extension

Neuro-Mag Magnesium L-Threonate

Mineral · Capsule · 30 servings

Label snapshot

What the label says

What the product contains and what one serving costs, according to our catalog. Label amounts are not personal dose recommendations.

Mineral per serving
Magnesium 144 mg Elemental vs compound: check label
Form
Capsule
List price (catalog, USD)
$30.00
Price per serving
$1.00List price divided by servings per container. A per-day cost only if the label serving is once daily.

Reading notes

  • Whether the figure is elemental mineral or compound weight is not stored. Read the label.
Full label record: servings, testing, ingredients
Servings per container
30
Catalog monthly estimate
$30.00
Testing disclosure
Brand lists third-party testing; no public lab certificate listedStatus as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.

Ingredients as listed

IngredientAmount per serving
Magnesium144 mg

What to check on the label

  • Whether the label says 'elemental magnesium' or gives the compound weight (for example '2,000 mg magnesium L-threonate').
  • The salt form named. Different salts contain very different shares of elemental mineral.
  • Capsules per serving. Several products use two or three.

Amounts are per label serving as recorded in the catalog and are not a recommendation. Testing status reflects what the brand lists. Nothing here is medical advice.

Editorial score and research-dose calculations

These calculations describe our scoring method. They are not a recommended dose or proof of benefit from this product.

7.7/10
Overall score
#3 / 5 in Mineral

Full trial dose, tested by independent lab.

Read the evidence (3 studies)
Add to compareVisit brand site →
Watch out
Tier 4
Ingredient RCT (different dose)
The ingredient was tested in an RCT but at a different dose, or only in animals.
See the 3 supporting studies
How we scored this product Show the full breakdown
Dose vs. studies (50%) Why 8.2 of 10. Primary ingredient is Magnesium (evidence grade A). It delivers 144 mg, 72% of the studied range low edge (200 mg). Below what the trial used. Read the rule → 8.2
Transparency (20%) Why 8.0 of 10. Earned points for independent third-party testing and all doses disclosed. Lost points for no public certificate of analysis. Read the rule → 8.0
Value (10%) Why 7.2 of 10. One day at the trial dose costs about $2.08. That is more expensive than average (200 of 313 by cost per effective day). Read the rule → 7.2
Formulation (10%) Why 5.0 of 10. No published absorption advantage or disadvantage on file. The default of 5 is not a criticism. Read the rule → 5.0 Default. No absorption data on file.
Safety (5%) Why 7.0 of 10. Baseline 5.0. Third-party testing adds 2.0. Public lab certificate adds 1.5. NSF, USP or Informed Choice certification adds 1.5. Active safety signal subtracts 3.0. Read the rule → 7.0
Community sentiment (5%) Why 8.8 of 10. No external reviews found, so community sentiment defaults to neutral. Community never counts as clinical evidence. Read the rule → 8.8
Composite How this 7.7 is built. 0.50 × 8.2 + 0.20 × 8.0 + 0.10 × 7.2 + 0.10 × 5.0 + 0.05 × 7.0 + 0.05 × 8.8 = 7.7 out of 10. Safety caps applied after. 7.7
7.7 composite
Dose vs. studies50%8.2
Transparency20%8.0
Value10%7.2
Formulation10%5.0
Safety5%7.0
Community5%8.8

Evidence gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Safety caps applied after weighting.

This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.

Read the full method →

Editorial verdict

Quick verdict

7.7 / 10
Best for
Basic coverage
Avoid if
Only 72% of trial dose, No public lab certificate
Full-dose status
72% of trial dose
Price/month
$30
COA status
Not public
Biggest caveat
Magnesium (144.0mg is 48% of the 300mg trial dose) is significantly under-dosed.
Nearest alternatives
Catalog snapshot. Check linked sources for current price, label and batch-specific testing.
Price verification
Current price: $30.00
Last price check: Sep 01, 2026
Add to compareVisit brand site →
Layer 2 · Context
In plain language

Why this scored this way

This Life Extension Neuro-Mag Magnesium L-Threonate scores 7.7, making it a strong scorer. It delivers 144mg of Magnesium, 72% of the studied range low edge (200mg) with grade A evidence (strong human trial data). At $2.08/day it's among the more expensive options in Mineral.

What drives the score up

  • Dose-evidence score of 8.2 reflects good alignment with trial doses.
  • Tested by independent lab (transparency 8.0).
  • Community score of 8.8 with positive consumer feedback.
  • Magnesium has grade A evidence and is dosed at 72% of the trial dose.

What drags it down

  • Magnesium (144.0mg is 48% of the 300mg trial dose) is significantly under-dosed.
  • No public lab certificate available for independent verification.
  • At $2.08/day it's on the expensive side.

Why you'd choose it

  • You want Magnesium from a Life Extension product.
  • You want a tested by independent lab product.
  • You want doses that align with published research.

Why you might skip it

  • You want a product with a publicly available CoA.
  • You need a full trial dose of magnesium (this product under-doses it).
  • You want a cheaper option (this is $2.08/day).
Question 1

Does the molecule work?

The science behind each active ingredient, independent of which brand sells it.

Magnesium

One of the most common deficiencies; corrects sleep, muscle cramps, and blood pressure.

5 landmark RCTs · US: Dietary supplement · EU: Food supplement, health claims authorised
Question 2

Is this bottle good?

The specific product: dose, price, transparency, and what buyers report.

Dose vs research
72% of trial dose
Below the full trial dose
Cost at trial dose
$2.08/day at trial dose
What one effective daily dose actually costs
Transparency
8.0/10 · No public lab certificate
Independent batch testing confirmed
Consumer signals
21,162 reviews across platforms · 4.5/5 · high confidence
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

Safety flags, transparency gaps, dosing concerns, and recurring buyer complaints.

No public lab certificate
Certificate of Analysis not published
Without a public lab certificate, batch purity and potency cannot be independently verified.
Buyer complaints
Reddit: price debated relative to benefit for sleep alone
Recurring themes from consumer review platforms.
Plain English

What’s inside

The main ingredients of this product, in plain language.

Magnesium144 mgEvidence A

One of the most common deficiencies; corrects sleep, muscle cramps, and blood pressure.

Read about Magnesium →
Layer 3 · Evidence vault

Product data & verification

Hard numbers and independently checked status. Expand each block for its source.

The numbers

Price
$30
per bottle · 30 servings
Dose vs. research
Below trial dose 72%
of published effective dose
$ / day at studied dose
$2.08
what one effective daily dose costs
$ / g active
$6.94
per gram of active substance
Independently checked

Data verification

COA status
Not public
Evidence grade
A
Per-ingredient breakdown
AMagnesium

All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Evidence grades are reviewed when new human RCTs are published. Read how we verify.

What's inside

Ingredient
Dose in this product
Trial dose
Evidence
144 mg 48% of trial dose
300 mg
4.4 /5
High confidence Strong value signal
21,559 reviews across 4 platforms (4 sources)
Source diversity: 92%
AmazonRedditTrustpilotiHerb
Praisehigh quality and trustworthy productsimproved sleep quality
Complaintsprice debated relative to benefit for sleep alone
Last checked: 2026-08-20

Consumer signals

4.5 out of 5 across 21,162 verified reviews on 4 platforms.

High confidence

Consumer sentiment compiled from 4 public sources.

Trustpilot

397 reviews · 4.4/5 · positive sentiment

Praisehigh quality and trustworthy products
Themes

Life Extension carries a strongly positive brand-level Trustpilot reputation.

Compiled from Trustpilot listing located during research; verified at build time.

Amazon

21,162 reviews · positive sentiment

Praiseimproved sleep qualityreduced anxietycognitive benefits within weeks
Themes

Amazon's large review base (21,000+) is strongly positive, citing better sleep, reduced anxiety, and noticeable cognitive benefits.

Compiled from Amazon listing located during research; verified at build time.

iHerb

positive sentiment

Praisetop-ranked in its category
Themes

iHerb reviewers rank this among the best magnesium L-threonate products available.

Compiled from iHerb listing located during research; verified at build time.

Reddit

3 threads discussed · positive sentiment

Praisedescribed as a game-changer for sleep and memorysharper focus
Complaintsprice debated relative to benefit for sleep alone
Themes

Reddit users frequently describe magnesium L-threonate as transformative for memory, focus, and sleep.

Compiled from Reddit listing located during research; verified at build time.

These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.

What others say (unverified)

No external reviews aggregated yet for this product.

Layer 3 · Evidence vault

Evidence, claims & regulation

Published evidence, claim checks, regulatory status and what could not be verified.

Evidence

Research behind this product

The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.

MagnesiumMagnesium + CVD meta-analysis 2019 (544,581)
MagnesiumMagnesium + vascular function 2020 meta-analysis
MagnesiumMagnesium + cognitive health 2024 (Adv Nutr)
MagnesiumMagtein RCT 2026 (N=100)
MagnesiumMagnesium + T2D meta-analysis 2007 (286,668)
Important to know
MagnesiumMagnesium oxide has ~4% absorption and mostly acts as a laxative. Always check the salt form, not just 'magnesium'.

Editorial notes

Uses licensed Magtein magnesium L-threonate, the form specifically studied for crossing the blood-brain barrier and supporting cognition, 144mg elemental magnesium per 3-capsule serving is a modest dose (well below the RDA if used as sole magnesium source), positioned as a brain-targeted add-on rather than a general magnesium-repletion product.

Go deeper

Where this sits

Actives inside
Magnesium
Category
See all in Mineral →
Ranking
See top 10 Magnesium supplements →
Brand
Life Extension profile →
Add to compare Visit brand site →
Brand owners

Spot an error?

If you are the manufacturer or brand owner of Neuro-Mag Magnesium L-Threonate and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.

We review every request, verify it against primary sources, and publish any accepted change with a dated note. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

Request a correction →
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