Project Description
Product Description
Magnesium L-Threonate is made by combining a natural byproduct of vitamin C (L-threonic acid) with magnesium, using a special process that helps it get absorbed by the brain more effectively.It is a highly bioavailable form of magnesium uniquely designed to cross the blood-brain barrier, effectively elevating brain magnesium levels to support cognitive function, enhance memory, and promote neural plasticity. Clinically studied for its neuroprotective properties, it aids in maintaining healthy synaptic density and may improve learning capabilities while also contributing to overall nervous system health and balanced magnesium supplementation.

Key Technical Specifications
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | White to off-white fine powder | Visual |
| Assay (Magnesium L-Threonate, drybase) | 98.0%-102.0% | USP |
| Magnesium Content | 7.2% -8.3% | Titration /ICP |
| Loss on Drying | ≤ 2.0% | USP |
| pH (1% solution) | 5.8-7.0 | USP |
| Heavy Metals (Total) | ≤ 10 ppm | USP |
| Lead (Pb) | ≤1.0ppm | USP /ICP-MS |
| Arsenic (As) | ≤2.0 ppm | ICP-MS |
| Cadmium (Cd) | ≤1.0ppm | ICP-MS |
| Mercury (Hg) | ≤ 0.5 ppm | ICP-MS |
| Total Plate Count | ≤ 10,000 CFU/g | USP |
| Yeast & Mold | ≤ 1,000 CFU/g | USP |
| E.coli | Negative | USP |
| Salmonella | Negative | USP |
Benefits & Application
- Enhances Cognitive Function
Magnesium L-Threonate supports memory formation, learning efficiency, and overall brain performance by increasing synaptic density in key regions like the hippocampus. - Promotes Neuroplasticity
It facilitates neural plasticity, enabling the brain to adapt, reorganize, and maintain healthy communication pathways between neurons. - Improves Sleep Quality
By regulating neurotransmitters and calming the nervous system, it contributes to deeper, more restorative sleep cycles. - Boosts Magnesium Levels
It efficiently replenishes magnesium deficiencies in the brain and body, supporting cellular energy production, muscle function, and stress response.
Application
- Dietary Supplements
The most common forms of L-threonate magnesium are capsules, tablets, and powder bars. Typical dosages range from 667 mg to 2,000 mg per serving (calculated as L-threonate magnesium). 667 mg capsules are a common commercially available specification, and this dosage has been extensively validated in clinical studies. The powder form is suitable for blending with other functional ingredients, allowing consumers to adjust the dosage according to their needs. In formulations, L-threonate magnesium exhibits good stability, making it suitable for multi-component supplements. - Functional Foods
In the functional food sector, L-threonate magnesium is used in products such as gummies, gels, and protein bars, with typical dosages ranging from 200 to 800 mg per serving. Its neutral flavor characteristics ensure it does not interfere with the original taste of the product, while its thermal stability allows it to be adapted to gummy production and baking processes. In protein bars, it is well-compatible with the protein matrix, without affecting the product’s texture or shelf life. - Beverages
In beverage applications, L-magnesium threonate is suitable for ready-to-drink beverages, powders, and tinctures, with typical dosages ranging from 200 to 1,000 mg per serving. Its high water solubility allows for rapid and complete dissolution without residue; it remains stable in low pH environments, making it suitable for formulations of fruit-flavored beverages and functional waters; and it produces clear solutions without affecting the clarity and appearance of the beverage, which is particularly important for ready-to-drink products.
Recommended Formulation Synergies
For brain health formulations, Magnesium L-Threonate can be effectively combined with complementary nootropic ingredients. It is commonly paired with:
Ginkgo Biloba Extract: For enhanced cognitive function and memory support.
- Bacopa Monnieri: To support learning and mental performance.
- Phosphatidylserine: For synaptic health and stress management.
- L-Theanine: Often combined with a low dose of caffeine for focus without jitters.
- B-Vitamins & Vitamin C: As L-threonate is a metabolite of vitamin C, including it in formulations may provide synergistic benefits.
Why Choose Our Magnesium L-Threonate?
- Verified Purity: Meets stringent specifications with ≥98% assay and controlled heavy metal levels.
- Complete Traceability: Every batch is accompanied by a comprehensive COA, including identity, purity, and elemental analysis .
- Flexible Supply: Available in multiple packaging options to suit trial orders and large-scale production runs.
- Technical Support: We provide documentation to facilitate regulatory submissions, including COA and specification sheets.
- Reliable Sourcing: Manufactured in GMP-certified facilities with robust quality management systems.
Packing & Shipping

Why Choose Us & How to Order?

Located in China, if you purchase from us,we offer many additional convenient services, all of which cannot be easilly provided by other ingeredient products suppliers. Welcome to contact us to get FREE SAMPLE, COA and Nutrition Facts!
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