Price History (90 days)
Quick Facts
- Form
- Capsules
- Dose
- 2000mg Magtein (144mg elemental Mg)
- Serving
- 3 capsules
- Servings
- 30
- Vegan
- Yes
- Made in
- USA
Life Extension Neuro-Mag Magnesium L-Threonate
by Life Extension
Life Extension Neuro-Mag features Magtein, the only patented form of magnesium shown in peer-reviewed research to cross the blood-brain barrier and increase brain magnesium levels. Developed by MIT researchers, magnesium L-threonate has been studied for its potential to support cognitive function, memory, and synaptic plasticity. Each serving provides 144mg of magnesium from 2000mg of magnesium L-threonate.
AI Review Summary
Life Extension Neuro-Mag features the patented Magtein form, the only magnesium shown in published research to cross the blood-brain barrier. Developed by MIT scientists, it targets cognitive function rather than general magnesium deficiency. The trade-off is cost: at 3 capsules per serving with only 30 servings per bottle, it is the most expensive magnesium supplement in this comparison by a wide margin.
Pros
- +Only magnesium form shown to cross the blood-brain barrier
- +Patented Magtein — backed by MIT research
- +Targets cognitive function and memory
- +Clean excipient profile
Cons
- -Very expensive — nearly 1 GBP per day
- -Only 144mg elemental magnesium per serving
- -3 capsules per serving is inconvenient
Best For
Watch Out
- !Low elemental magnesium — not a replacement for general Mg supplementation
- !Cost is very high relative to other magnesium forms
Ingredients & Composition
Active Ingredients
- Magnesium (as Magnesium L-Threonate — Magtein)
- 144mg (34% DV)
Other Ingredients
Vegetable Cellulose (capsule), Microcrystalline Cellulose, Stearic Acid, Silica
Clean Label Analysis
Standard excipients, nothing concerning. The capsule load is high (3 capsules per serving) because L-threonate has a low magnesium yield by weight.
Quality & Testing
Third-Party Tested
This product has been independently tested by third-party laboratories for purity, potency, and safety.
Certifications
Additional Specifications
- Type
- Mineral
- Form
- Capsules
- Dose
- 2000mg Magtein (144mg elemental Mg)
- Serving Size
- 3 capsules
- Fillers Analysis
- Standard excipients, nothing concerning. The capsule load is high (3 capsules per serving) because L-threonate has a low magnesium yield by weight.
- Allergens
- Free from: dairy, eggs, gluten, soy, wheat, sugar, artificial flavours
- Made In
- USA
How We Score Supplements
Our AI analyses reviews from Reddit, Amazon, YouTube, and specialist forums, then scores each product on a 1-10 scale across six evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on aggregated user experiences.
Ingredient Quality
Bioavailable forms, clean label, minimal fillers, no artificial junk. Higher = cleaner.
Value for Money
Price per serving relative to ingredient quality and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 10 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
Disclaimer: AIScored provides AI-generated summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.