Magnesium L-Threonate Powder for Brain Health & Sleep
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Cognitive Health Magnesium L-Threonate Powder 1 g

A delicious blended mixed berry magnesium L-threonate powder designed to support focus, memory, mood, and sleep†—featuring a unique blend of three highly absorbable forms of magnesium.

 

 

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Cognitive Health† Magnesium L-Threonate Powder Natural Berry
Supplement Facts

Serving Size: 1 scoop (3.3 grams)
Servings Per Container: about 30
Ingredient Amount Per Serving
% Daily
Value
Magnesium (as Magnesium L-Threonate (Magtein®), Magnesium Glycerophosphate, Magnesium Acetyl Taurinate) 200 mg 48%
Magnesium L-Threonate (Magtein®) 1 g
*Daily Value not established.

Magtein® is protected under a family of US patents and pending patents and is protected worldwide.
Magtein® is a trademark of and is licensed exclusively by ThreoTech LLC.

This dietary supplement is free of allergens derived from gluten, yeast, synthetic colors, or artificial flavors.

While we strive to ensure the label information on this site represents the label on the product available for purchase, products are updated from time to time. Please consult the label on the product you purchase for the most accurate ingredient and allergen information.

Item Number: 315
SKU: 816899005121
Formula#: L-COO977-263030-A (262.001A)

What It Is

Cognitive Health Magnesium L-Threonate Powder is an advanced brain-focused supplement delivering 200 mg of magnesium in three clinically studied forms: magnesium L-threonate (Magtein®), magnesium acetyl taurinate, and magnesium glycerophosphate. This powder formula is designed to boost brain magnesium levels more effectively than traditional forms, supporting healthy cognition, emotional balance, and restorative sleep†.

In addition to magnesium L-threonate, this formula features magnesium acetyl taurinate, which combines magnesium with the amino acid taurine for enhanced brain delivery and neuroprotective benefits†. Taurine supports calming neurotransmission, mitochondrial energy production, and antioxidant activity in the brain†. Also included is magnesium glycerophosphate, a highly bioavailable form that supplies both magnesium and glycerol—an important component in brain cell membranes and a metabolic fuel for brain energy†.

How to Use:

Mix one scoop (3.3 grams) of Cognitive Health Magnesium L-Threonate Powder with water or your favorite beverage once daily or as your physician or health care provider recommends. Each canister contains approximately 30 servings.

How It Helps

Magnesium is a vital mineral that plays a role in over 300 enzymatic reactions in the body, supporting essential functions such as muscle and nerve activity, heart rhythm, blood pressure regulation, and energy production.† It also contributes to bone strength by assisting with calcium and vitamin D metabolism.† Beyond its physical benefits, magnesium is closely tied to mental well-being—helping regulate neurotransmitters involved in stress response, mood, and cognitive performance†.

Maintaining optimal magnesium levels is important for overall health because magnesium has a broad impact on both body and mind. Cooper Complete Cognitive Health Magnesium L-Threonate Powder is formulated to deliver highly bioavailable forms of magnesium that support brain health, memory, focus, restful sleep, and emotional balance†.

Supports Memory and Mental Clarity†

Magnesium L-threonate is a specialized form of magnesium clinically shown to support cognitive health, especially in individuals experiencing age-related memory decline†. Unlike traditional magnesium forms, magnesium L-threonate can uniquely cross the blood-brain barrier and raise magnesium levels within brain cells—an essential factor for healthy neural communication, memory, and cognitive function†.

Each serving of Cooper Complete Magnesium L-Threonate Powder provides 1 gram of Magtein®, the branded form of magnesium L-threonate used in clinical research. Studies have found that even moderate daily doses—between 1 to 2 grams per day—can significantly improve executive function, working memory, and attention in older adults†. These cognitive benefits are thought to result from enhanced synaptic density and brain plasticity, which support the brain’s ability to adapt and form new neural connections†.

This blended magnesium l-threonate powder offers targeted support for maintaining mental sharpness, focus, and memory as we age† by nourishing brain magnesium levels.

Supports Age-Related Memory and Cognition†

Magnesium L-threonate is a unique form of magnesium that has been shown to significantly improve memory and cognition, particularly in individuals experiencing age-related memory decline.† Unlike other forms of magnesium, magnesium L-threonate effectively crosses the blood-brain barrier, directly increasing magnesium levels in the brain.† This elevation in brain magnesium enhances synaptic density and plasticity, which is crucial for efficient neural communication and cognitive function.† Studies have demonstrated that supplementation with magnesium L-threonate can improve learning abilities, short-term and long-term memory, and executive function.† Magnesium L-threonate offers a promising solution for maintaining mental clarity and cognitive vitality in older adults by supporting brain health and mitigating aging’s effects on cognitive abilities.†

A 2015 clinical trial investigated the cognitive effects of magnesium L-threonate in humans. Participants were administered 1.5 to 2 grams of Magtein® (the branded magnesium L-threonate in Cooper Complete Cognitive Health Magnesium L-Threonate Powder) daily over a 12-week period. The results demonstrated significant improvements in measures of executive function, working memory, and attention.† This study provided critical evidence supporting the cognitive benefits of magnesium L-threonate at 2 grams per day.†

Supports Restful, Restorative Sleep†

Magnesium L-threonate is widely recognized for its brain-focused benefits, including its unique ability to enhance sleep quality†. Unlike conventional forms of magnesium, magnesium L-threonate crosses the blood-brain barrier, where it supports neurotransmitter balance and regulates the production of melatonin—the hormone responsible for managing sleep-wake cycles†. This targeted action helps promote a more consistent, restful sleep rhythm†.

In addition to L-threonate, the formula includes magnesium acetyl taurinate, which delivers taurine to the brain—a calming amino acid that helps modulate excitatory neurotransmitters and support GABA activity†. GABA (gamma-aminobutyric acid) is the brain’s primary inhibitory neurotransmitter and plays a central role in calming the nervous system and preparing the body for sleep†. By increasing GABA signaling, this blend helps reduce racing thoughts and promote relaxation, making it easier to fall asleep and stay asleep†.

Also included is magnesium glycerophosphate, which contributes to mitochondrial energy production and supports neuronal recovery during sleep†. Its glycerol component helps fuel brain cells during periods of rest and repair, especially during deep and REM sleep†.

Together, these advanced magnesium forms promote deeper, more restorative sleep by supporting the brain’s natural ability to unwind, regenerate, and reset overnight†—leading to better mood, sharper cognition, and improved overall well-being during the day†.

Supports Relaxation and Emotional Wellbeing

Cooper Complete Cognitive Health Magnesium L-Threonate Powder is formulated to support emotional balance, mental clarity, and stress resilience†. Magnesium L-threonate stands out for its ability to cross the blood-brain barrier and elevate magnesium levels within the brain—an essential factor in regulating neurotransmitters like serotonin and dopamine, which influence mood, motivation, and emotional stability†. It also supports the production of GABA (gamma-aminobutyric acid), the brain’s primary calming neurotransmitter, helping to ease occasional stress and promote relaxation†.

To further enhance these benefits, the formula includes magnesium acetyl taurinate, which delivers the amino acid taurine to the brain, where it helps balance excitatory and inhibitory signals†. Taurine has been shown to support emotional regulation, reduce feelings of nervousness, and protect neurons from overstimulation†.

Magnesium glycerophosphate complements this effect by supporting energy metabolism and membrane integrity in brain cells, helping the nervous system remain stable under stress†.

Together, these three advanced forms of magnesium work synergistically to foster a calm, focused mind and a more balanced emotional state—promoting greater mental resilience and overall well-being†.

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Customer Q&As

If you have questions, we have answers. See what real people are asking about Cooper Complete products.

11 Questions
Ask a Question
Q:

I like to stock up on supplements when I buy them. What kind of expiration date does Cognitive Health Powder have?

A:

Cognitive Health Magnesium L-Threonate Powder has a one-year shelf life from the date of manufacture, which is shorter than our other products due to the natural flavors used. Taste and aroma can weaken over time. To ensure you enjoy this product with the best flavor and scent, we set a shorter shelf life and make smaller, more frequent batches. Because of this, we suggest you not purchase more than a 3- to 4-month supply at any one time.

Q:

I dislike strong flavors. What does this magnesium l-threonate powder taste like?

A:

Magnesium L-Threonate Powder has a hint of berry flavor. It’s a light, subtle flavoring of mixed berries, so it shouldn’t be offputting for those adverse to more potent, pronounced flavors.

Q:

Do magnesium L-threonate, acetyl taurinate, or glycerophosphate have a laxative effect?

A:

No—these forms of magnesium are not typically associated with a laxative effect. Unlike common magnesium salts such as magnesium oxide or magnesium citrate, which can draw water into the intestines and cause loose stools, the forms used in Cognitive Health Magnesium L-Threonate Powder are designed for targeted absorption and brain support, not digestive action†.

Because they’re highly bioavailable and better absorbed at the cellular level, magnesium L-threonate, magnesium acetyl taurinate, and magnesium glycerophosphate are generally well-tolerated—even for those who are sensitive to magnesium’s gastrointestinal side effects†.

Q:

Are there any contraindications or interactions with medications or other supplements I might be taking?

A:

General Safety

This product is formulated with highly bioavailable forms of magnesium to support cognitive health, emotional balance, and sleep quality†. When used as directed, magnesium is well tolerated by most.

Potential Interactions

  • Antibiotics (e.g., tetracyclines, fluoroquinolones): May reduce effectiveness, so take magnesium at least 2 hours before or 4–6 hours after.

  • Thyroid medications (e.g., levothyroxine): May interfere with absorption if taken together.

  • Bisphosphonates (osteoporosis medications): May be less effective if taken at the same time as magnesium.

  • Diuretics or blood pressure medications: Magnesium may enhance their effects.

  • Sedatives or sleep aids: Magnesium’s calming properties may have an additive effect.

Q:

If I’m taking Cognitive Health Magnesium L-Threonate Powder primarily for brain health benefits, is it important to take it in the morning? I’m worried it will make me sleepy during the day.

A:

Great question! Cognitive Health Magnesium L-Threonate Powder is designed to support brain health, memory, and focus without causing drowsiness†. While some people prefer taking it in the evening to support sleep, many take it in the morning or afternoon for its cognitive benefits†. Magnesium L-threonate doesn’t act like a sedative—it supports calm focus and mental clarity†. If you’re concerned, start by taking it at a time when you can observe how your body responds, then adjust as needed for your lifestyle.

Q:

When’s the best time to take Cognitive Health Magnesium L-Threonate Powder if I’m trying to improve my sleep health?

A:

For sleep support, we recommend taking Cognitive Health Magnesium L-Threonate Powder in the evening, about 1–2 hours before bedtime.† This timing allows magnesium’s calming effects—particularly its support for GABA activity and melatonin regulation—to help ease you into restful, uninterrupted sleep†. Mix one scoop with water or your favorite beverage as part of your nightly wind-down routine.

Q:

How does Cognitive Health Magnesium L-Threonate Powder compare to the capsule version of Cognitive Health Magnesium L-Threonate?

A:

The powder and capsule versions both support brain health, but they differ in format, taste, and formulation. See the comparison below for details.

Product Comparison Table
Feature Cognitive Health Magnesium L-Threonate Powder Cognitive Health Magnesium L-Threonate Capsules
Format Powder (Hint of Berry) Capsules
Magnesium Forms  L-Threonate, Acetyl Taurinate, Glycerophosphate L-Threonate only
Elemental Magnesium Per Serving 200 mg 144 mg
Target Benefits Memory, focus, sleep, mood, neuroprotection† Memory, focus, cognitive clarity†
Serving Size 1 scoop daily (mix with beverage) 2 capsules daily
Flavor Yes (naturally flavored hint of mixed berry) Unflavored
Ideal For Those preferring a drinkable format Those preferring capsules
Q:

I currently take Cooper Complete Magnesium Glycinate. Can I also take this magnesium supplement, or do I need to take one or the other?

A:

You may consider combining both forms of magnesium for more comprehensive support, especially if you’re looking to target both mind and body wellness.†

You want full-body and brain support

  • Glycinate helps restore overall magnesium levels throughout the body†

  • L-Threonate helps increase magnesium concentration in the brain†

You deal with both muscle tension and mental fatigue

  • Glycinate supports muscle relaxation and may ease physical stress†

  • L-Threonate may promote mental clarity and emotional balance†

You’re looking to improve sleep from multiple angles

  • Glycinate helps the body unwind and relax before bed†

  • L-Threonate may support sleep quality by promoting healthy brain activity†

 

 

Q:

How should I take this product?

A:

Mix one scoop (3.3 grams) of the powder with water or your favorite beverage. The powder is a very mild natural mixed berry flavor.

Q:

How does this magnesium supplement support brain/cognitive health?

A:

Magnesium is essential for synaptic plasticity, neurotransmitter activity, and mitochondrial energy in brain cells. Increased brain magnesium may help support working memory, learning, and attention, especially in older adults†.

Q:

What makes this magnesium powder different from regular magnesium supplements?

A:

This powder features three advanced forms of magnesium—L-threonate, acetyl taurinate, and glycerophosphate—which are formulated for optimal brain support†. Magnesium L-threonate (Magtein®) is the only form shown to cross the blood-brain barrier and increase brain magnesium levels, supporting memory, focus, mood, and sleep quality†.

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