Product Description
Magnesium is critical for an extensive list of biochemical processes, but not all magnesium does the same thing. Take L-Threonate: it has a unique molecular structure that allows it to cross the blood-brain barrier more effectively than other forms of magnesium Magtein L-Threonate Plus supports cognitive performance, with a distinctive form of magnesium plus vitamins C and D3.
Cognitive support – The formula supports cognitive performance, including executive function and short-term memory. Those are the skills you use to hold a plan in your head and stick to it.
A distinctive form of magnesium – Magtein is magnesium L-threonate, a bioavailable and distinctive form of magnesium that supports cognitive performance. It is the branded form used in published human trials on the ingredient.
Vitamins C and D3 alongside the magnesium – Each three-capsule serving adds 60 mg of vitamin C and 10 mcg of vitamin D3. The vitamin D3 supports magnesium absorption.
Magnesium L-threonate is magnesium bound to L-threonate, and each serving provides 2,000 mg of it, which delivers 144 mg of elemental magnesium, the actual magnesium content. In a 6-week randomized, placebo-controlled trial of 100 adults aged 18 to 45 who reported dissatisfied sleep, 2 g of Magtein daily produced greater improvement in overall cognitive performance than placebo, with larger effects on working memory and episodic memory.
How to Use Magtein L-Threonate Plus
Dose: Adults take 3 capsules daily. It works best in divided doses, with 1 capsule in the morning and 2 capsules one hour before bedtime.
Do not take Magtein L-Threonate Plus if you are pregnant or nursing, or talk with a healthcare professional first.
Supplement Facts
30 Servings
Serving Size: 3 Capsules
Serving Per Container: 30
| Amount Per Serving | ||
|---|---|---|
| % Daily Value* | ||
| Calories 10 | ** | |
| Total Carbohydrate 2g | ** | |
| Vitamin C (ascorbic acid) 60mg | ** | |
| Vitamin D3 (as cholecalciferol) 10mcg (400 IU) | ** | |
| Magnesium (from 2,000 mg Magtein® Magnesium L-Threonate) 144mg | ** | |
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
** Daily Value (DV) not established
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Integrative Therapeutics Magtein L-Threonate Plus FAQ's
Everything you need to know before getting started.



The label says it works best in divided doses. Take 1 capsule in the morning and 2 capsules one hour before bedtime.
It is a form of magnesium bound to L-threonate. Magtein is the branded form used in this product, and the vendor describes it as a bioavailable and distinctive form of magnesium that supports cognitive performance.
Each serving adds 60 mg of vitamin C and 10 mcg of vitamin D3. The vitamin D3 supports magnesium absorption.
Yes. The vendor lists it as vegetarian, and it contains no gelatin. It is also dairy free and gluten free, with no wheat, soy, or artificial colors.