100kg Magnesium L-Threonate 98% Bulk Powder from Peptidchem. ISO9001 manufacturing, 98–102% purity, OEM support, COA, global export, and competitive wholesale pricing.
Unlike many conventional magnesium salts, L-Magnesium Threonate has been studied for its ability to increase magnesium availability in the body and has been investigated in human clinical research involving cognitive performance, sleep quality, and healthy aging. The European Food Safety Authority (EFSA) concluded that Magnesium L-Threonate is safe under approved conditions of use and that magnesium from this source is bioavailable.
Our Magnesium L-Threonate features excellent water solubility, stable quality, and consistent particle size for capsules, tablets, stick packs, and powdered beverage formulations.
Magnesium L-Threonate Manufacturing Process
Peptidchem follows standardized GMP production procedures to ensure batch consistency and traceability.
Raw Material Inspection
L-Threonate Intermediate Preparation
Magnesium Salt Formation
Purification & Crystallization
Drying & Milling
Quality Testing
Packaging & Batch Release
Each production batch undergoes identity confirmation, magnesium content testing, microbiological testing, and heavy metal analysis before shipment.
Magnesium L-Threonate Powder Specification
| Test Item | Specification | Test Method |
| Product Name | Magnesium L-Threonate Powder | — |
| Grade | Supplement Grade | — |
| CAS Number | 500304-76-7 | — |
| Molecular Formula | C₈H₁₆MgO₁₁ | — |
| Molecular Weight | 312.49 g/mol | Calculated |
| Appearance | White to Off-White Powder | Visual |
| Odor | Characteristic | Organoleptic |
| Solubility | Freely Soluble in Water | USP |
| Assay | 98.0–102.0% | HPLC |
| Elemental Magnesium | 7.2–8.3% | ICP-OES |
| L-Threonate Content | 82–91% | HPLC |
| pH (5% Solution) | 6.0–8.0 | USP |
| Loss on Drying | ≤5.0% | USP |
| Oxalic Acid | ≤1.0% | HPLC |
| Residual Ethanol | ≤5,000 ppm | GC |
| Bulk Density | ≥0.40 g/mL | USP |
| Particle Size | NLT 90% Pass 20 Mesh | Sieve Analysis |
| Lead (Pb) | ≤0.5 ppm | ICP-MS |
| Arsenic (As) | ≤1.0 ppm | ICP-MS |
| Cadmium (Cd) | ≤0.5 ppm | ICP-MS |
| Mercury (Hg) | ≤0.1 ppm | ICP-MS |
| Total Plate Count | ≤100 CFU/g | USP |
| Yeast & Mold | ≤10 CFU/g | USP |
| E. coli | Not Detected | USP |
| Salmonella | Not Detected | USP |
Magnesium L-Threonate Powder for Dietary Supplements
Bulk Magnesium L-Threonate is widely used in brain health, memory, sleep, and healthy aging supplements. While EFSA has authorized adult food supplement use up to 3,000 mg/day (about 250 mg elemental magnesium) under specified conditions. Peptidchem supplies 98% L-Magnesium Threonate Powder for dietary supplement brands, contract manufacturers, distributors, and importers worldwide.
1.Brain Health Capsules
| Ingredient | Amount |
| Magnesium L-Threonate | 1,000 mg |
| Phosphatidylserine | 300 mg |
| Citicoline | 250 mg |
| Vitamin B6 | 2 mg |
2.Sleep & Relaxation
| Ingredient | Amount |
| Magnesium L-Threonate | 2,000 mg |
| L-Theanine | 200 mg |
| Glycine | 500 mg |
| Vitamin B6 | 2 mg |
3.Healthy Aging Nootropic Powder
| Ingredient | Amount |
| Magnesium L-Threonate | 2,000 mg |
| NMN | 300 mg |
| PQQ | 20 mg |
| Coenzyme Q10 | 100 mg |
Clinical Research
Current human studies have explored Magnesium L-Threonate primarily in cognitive function and sleep support.
1. Cognitive Function
A randomized, double-blind, placebo-controlled trial involving adults with self-reported memory and concentration complaints investigated daily supplementation of 1.5–2 g for 12 weeks. The study evaluated cognition, mood, sleep, and magnesium-related biomarkers, with EFSA concluding that the safety data did not raise concerns.
2. Sleep Quality
Another randomized placebo-controlled study involving healthy adults investigated 2g/day supplementation for cognitive endpoints while also monitoring sleep-related parameters and safety markers, reporting no significant safety concerns.
3. Bioavailability
EFSA concluded that Magnesium L-Threonate provides bioavailable magnesium and approved its use as a novel food ingredient for adult food supplements under specified conditions.
Magnesium L-Threonate vs Other Magnesium
| Magnesium Type | Use | Water Solubility |
| L-Threonate | Cognitive & Brain Health | High |
| Glycinate | Relaxation & Sleep | High |
| Citrate | Digestive Support | Very High |
| Malate | Energy Support | Moderate |
| Taurate | Cardiovascular Support | Moderate |
| Oxide | General Magnesium | Low |
L-Magnesium Threonate vs Magnesium Glycinate
| Feature | L-Threonate | Glycinate |
| Primary Focus | Cognitive Support | Relaxation |
| Water Solubility | High | High |
| Popular Applications | Nootropics | Sleep Products |
L-Magnesium Threonate vs Magnesium Citrate
| Feature | L-Threonate | Citrate |
| Brain Health Formulas | Excellent | Limited |
| Beverage Applications | Good | Excellent |
| Typical Consumer Positioning | Premium | Mainstream |
Why Choose Peptidchem?
1. Free sample available: Magnesium L-Threonate Powder Suppliers 10-30g samples could be offered for your R&D trial. Qty: 1ton, Delivery method: FOB/CIF.
2. Quality and Purity: A Contract Supplements Manufacturer ensures that their Berberine Hydrochloride Extract is of the highest quality and purity. They often use third-party testing and provide a Certificate of Analysis (COA) to guarantee the product’s safety and efficacy.
3. Certificates: Over the years, we have been committed to product manufacture optimization and quality system establishment. We’ve set up the quality management system and obtained certificates for it. We provide ISO9001, Halal, Kosher, etc.
4. Customized Bulk Supply
We support:
Small trial orders
Bulk container supply
Private label manufacturers
Ingredient distributors
5. Global Export Capability
Markets served:
USA
Europe
Australia
Canada
Middle East
Asia-Pacific
Peptidchem can supply Bulk L-Threonate Magnesium Powder with customized active specifications, formulation support, COA documentation, and export-ready quality systems. Contact us today!
