• Mag L-Threonate Magnesium L-Threonate Brain Health Cognitive Support Supplement with Magtein for Memory and Mental Clarity
  • Mag L-Threonate Nutrition Facts Label Showing Magnesium L-Threonate Ingredient and Dietary Supplement Details
Metagenics

Magtein® Magnesium L-Threonate

$72.50
$72.50
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UPC : 755571948724

Mag L-Threonate by Metagenics features Magtein®, a specialized magnesium form designed to support cognitive health by supporting neuronal activity and brain function. ...
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The main Magtein Magnesium L-Threonate benefits are:

  • Supports memory boost to stay sharp and focused
  • Offers support for clear thinking
  • Suitable for learning focus
  • Aids enhanced attention and mental energy
  • Supports healthy brain cell activities 
  • Fast acting formulation that starts working in 30 minutes
  • Contains no sugar or preservatives
  • Suitable for vegetarian diet
  • Lactose-free formulation

Serving Size: 2 capsules

Servings Per Container: 60

Ingredient

Quality

Per Serving of 2 Capsules

Magnesium (as magnesium L-threonate)

98 mg

Magnesium L-Threonate

1.3g

Per Serving of 3 Capsules

Magnesium (as magnesium L-threonate)

147 mg

Magnesium L-Threonate

2g

Other Ingredients: Capsule (hydroxypropylmethylcellulose), microcrystalline cellulose, stearic acid (vegetable), and silica.

Take 3 capsules per day in divided doses. You can take one in the morning and two at night, two hours before bedtime. Consult with your healthcare provider. 

Adults seeking highly absorbable and efficient magnesium supplement for memory, brain health, and cognitive function can choose this supplement. Consult with your healthcare provider if you are pregnant, nursing, or have any other health condition. 

Quality & Sourcing

Metagenics Magtein® Magnesium L-Threonate contains a clinically tested ingredient. Metagenics focuses on delivering purity, quality, and efficacy with every product. Trusted by healthcare practitioners around the world, Metagenics is one of the top doctor-recommended supplement brands. 

For more than 40 years, Metagenics has been dedicated to making high-quality supplements in its cGMP manufacturing facilities. Each ingredient undergoes intensive testing protocols for safety and efficacy. Scientific experts combine these in evidence-based formulations that are third-party tested to ensure safety and quality. 

Why Buy from Nutriessential 

Looking for authentic supplements for brain and cognitive support? Choose Nutriessential to explore expert-curated supplements from the best brands. We feature top-rated brands with transparent labels and high-quality ingredients. We offer 100% authentic manufacturer-sourced supplements so that our customers get the best shelf life with their supplements. 

For more support to personalize your wellness journey, consult with our healthcare experts. 

This product is non-GMO, gluten free, and vegetarian.Caution:Do not use if pregnant or nursing. Consult your healthcare practitioner if taking diuretics, antibiotics, or medications for osteoporosis. Keep out of the reach of children.Storage: Keep tightly closed in a cool, dry place.

Dietary Considerations-

  • Gluten Free
  • Vegetarian
  • Non-GMO

Product Description

Magtein Magnesium L-Threonate contains clinically studied magnesium to support working memory and attention. It offers cognitive support to improve focus and mental clarity. 

Individuals looking for reliable support for memory, learning, focus, mental clarity, and energy can choose Magtein® Magnesium L-Threonate from Metagenics. It contains a specialized form of magnesium for optimal brain health support. Stay sharp, strengthen memory, and feel mentally energized with a daily intake of magnesium. 

Magtein Magnesium L-Threonate is a dietary supplement for brain health and cognitive performance. It contains Magnesium L Threonate, which is clinically studied to support working memory and attention. A study on health Chinese adults showed Magtein® (including phosphatidylserine and vitamins) to support an increase in magnesium levels in the brain. In this double-blind placebo placebo-controlled study, older and healthy participants showed better improvements in memory and cognition with 2g pf Magtein per day. (Source: A Magtein®, Magnesium L-Threonate -Based Formula Improves Brain Cognitive Functions in Healthy Chinese Adults).

While many standard magnesium supplements target muscles or digestion, Metagenics has formulated Magtein® Magnesium L-Threonate particularly to target brain health and cognitive support with continued usage. A recent 2025 6-week clinical trial also found that Magtein®, Magnesium L-Threonate supplementation for 6 weeks can support overall cognition, working memory, cognitive age, and reaction time. It may also improve self-reported sleep improvement. (Source: The effects of magnesium L-threonate (Magtein®) on cognitive performance and sleep quality in adults).

The Metagenics Magtein Magnesium L-Threonate is a fast-acting formulation provides 2g of Magnesium L-Threonate (per serving of 3 capsules). This evidence-based formulation delivers magnesium directly to the brain to support key cognitive functions. 

It’s a fast-acting formulation that starts working in as little as 30 minutes. 

Further, studies support that magnesium offers sleep support and in many Magtein® Magnesium L-Threonate reviews, users have pointed out that it helps them to sleep through the night. They get restful sleep and wakeup energized and refreshed to face their morning routine. 

1. What is Magnesium L-Threonate used for?

Magnesium L-Threonate is clinically studied to support brain and cognitive health. This form of magnesium supports memory, learning capacity, mental clarity, energy, and focus. Metagenics contains this clinically studied Magtein Magnesium L-Threonate in validated dosages per serving. 

2. How much Magnesium L-Threonate can I take daily?

Clinical studies mention that 2g of Magnesium L-Threonate can be beneficial for cognitive health. 3 capsules of Metagenics provides 2g of Magtein Magnesium L-Threonate. You may also start with 2 capsules in divided doses. Consult a healthcare professional to find the right dosage for you. 

3. Can Magnesium L-Threonate help with sleep?

Yes, many clinical studies associate magnesium L-Threonate with improvements in deep and REM sleep. Taking them two hours before bedtime does not affect daytime alertness. 

4. Is Magtein Magnesium L-Threonate better than other magnesium forms?

Other magnesium forms support muscular health and digestion. However, Magnesium L-Threonate form is particularly beneficial for brain health as it increases magnesium levels in the brain. Choose a form of magnesium based on your health goal and consult a healthcare professional. 

Regulatory Compliance Note

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.