Hello, Bricker Labs Magtein is manufactured in a cGMP and HACCP certified facility in Chandler, Arizona, USA 85225. Ingredient are sourced globally from the most reputable companies.

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Magtein® Magnesium L-Threonate Supplement – Brain Health, Memory, Focus, Learning & Cognitive Function Support – 90 Capsules, 30 Servings

Magtein® Magnesium L-Threonate Supplement – Brain Health, Memory, Focus, Learning & Cognitive Function Support – 90 Capsules, 30 Servings

Q: How big is the capsule?

Size 00 capsule : 0.791 inch (length), 0.337 inch (body diameter)

Q: To the manufacturer; why do you have to ruin this supplement by adding silicon dioxide?

There is less than 2% SiO2 (Silicon Dioxide) in this formula (1.6% to be exact). SiO2 is an inert substance with no known health affects at this level. It’s necessary so that the powder inside the capsule will flow through the production equipment.

Q: For the manufacturer, I'd like to know why there is L-leucine in this formula - not something I see in other supplements of magtein.

Hello, Thank you for your question. L-Leucine is used as lubricant (to improve encapsulation flow) of the formula. It is used in place of magnesium stearate, making Bricker Labs Magtein the only ‘clean label’ (so far) in its category. For reference: Leucine (Inactive Ingredient) - Drugs.com In the pharmaceutical industry, L-leucine is used for parenteral and enteral nutrition and feeding, and is also used as a flavoring product and tablet lubricant in manufacturing. I hope I answered your question. Please let me know if you need more clarification.

Product ID: 255893726

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Details

Brand
Bricker Labs
Primary Supplement Type
Magnesium
Unit Count
90 Count
Item Form
Capsule
Item dimensions L x W x H
2.37 x 2.37 x
Special Ingredients
Magnesium L

⚡Highly bioavailable, crosses blood-brain barrier

🌿Non-GMO, gluten & dairy-free clean formula

🧠144mg elemental magnesium per serving

Frequently Bought Together

Bricker Labs MAGTEIN® Magnesium L-Threonate | Magtein® Supplement for Brain Health, Memory, Focus & Cognitive Support, 90 Capsules – Non-GMO, Gluten-Free

BioBeet® Max Strength Beet Root Capsules - 21:1 Concentrate, Each Serving Derived from 28,350 mg Organic Beetroot - Absorption Enhancement with BioPerine® Black Pepper Extract (60 Capsules)

Description

🧠 Unlock your brain’s full potential—because your mind deserves the best.

STRESS LESS THINK MORE - Naturally reduces brain fog and stress while promoting calm, restful sleep and mood balance.
CLEAN PURE AND POWERFUL - Non-GMO, gluten-free, dairy-free formula with zero artificial additives—brain health without compromise.
SHARPER FOCUS CLEARER MIND - Enhances working memory, concentration, and mental clarity for peak professional performance.
TRUSTED QUALITY MADE IN USA - Crafted in cGMP & HACCP-certified facilities with 40+ years of purity and potency commitment.
CLINICALLY PROVEN BRAIN BOOST - 144mg elemental magnesium from patented Magtein® supports memory & learning like no other.

Bricker Labs Magtein® delivers 144mg of elemental magnesium via patented Magnesium L-Threonate per serving, a clinically studied form proven to cross the blood-brain barrier. This supplement supports cognitive function, memory, focus, and learning with a clean, non-GMO, gluten- and dairy-free formula. Made in the USA under strict quality standards, it also helps reduce stress and brain fog while promoting restful sleep, making it ideal for professionals and lifelong learners seeking mental clarity and peak brain health.

Have a Question? See What Others Asked

How big is the capsule?

Is it made in china?

To the manufacturer; why do you have to ruin this supplement by adding silicon dioxide?

For the manufacturer, I'd like to know why there is L-leucine in this formula - not something I see in other supplements of magtein.

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