Magnesium L-Threonate Powder
Magnesium L-Threonate Powder is a specialty magnesium ingredient used in dietary supplement formulations, including capsules, tablets and powder blends. Lifeworth supplies bulk Magnesium L-Threonate Powder for supplement brands, contract manufacturers, OEM projects and ingredient distributors, with defined specifications, batch documentation and sample support for evaluation.
- Magnesium L-threonate powder for premium supplement and cognitive wellness formulas
- Assay basis and elemental magnesium content reviewed before quotation
- Suitable for capsules, tablets, stick packs, and selected powder blend systems
- COA per batch with SDS/MSDS and TDS/spec sheet available on request
- Sample support, bulk packing, and export-ready documentation for international buyers
Tell us your application, target specification, and destination market so we can support grade selection, documentation review, and packaging recommendations.

Quick Specs
Identity
INCI Name
Alias
CAS Number
Molecular Formula
Molecular Weight
Quality
Assay
Grade
Standards
Assay Method
Handling
Appearance
Form
Solubility
Applications
Commercial Terms
MOQ
MOQ depends on packaging and specification.
Lead Time
3–7 working days for standard items; bulk orders by schedule.
Incoterms
EXW / FOB / CIF / DAP / DDP
Sample
Free sample (shipping charged)
Quality & Documents
COA (per batch) • SDS/MSDS • TDS/Spec sheet (on request). Additional statements depend on product and market.
Product Overview
Magnesium L-Threonate Powder is a specialty magnesium ingredient used in dietary supplement formulations where assay basis, elemental magnesium content, particle characteristics, and specification consistency are important for product development.
For commercial sourcing, buyers typically review assay basis, elemental magnesium percentage, particle size, solubility, heavy metals, microbiological limits, and destination-market documentation before confirming a bulk order.
Lifeworth supplies bulk Magnesium L-Threonate Powder for supplement brands, OEM and contract manufacturers, and ingredient distributors, with COA, TDS, SDS/MSDS, specification support, samples, flexible packaging, and commercial supply arranged according to project requirements.

Applications
Capsules & Tablets
Magnesium L-Threonate Powder can be used in capsule and tablet formulations where elemental magnesium content, particle characteristics, flowability, and finished dosage requirements are reviewed during formulation development.
Powder Blends & Stick Packs
Suitable for selected powder blends, sachets, and stick pack formulations. Solubility, taste profile, moisture behavior, and compatibility with other ingredients should be evaluated in the final formulation system.
Cognitive Wellness Formulations
Magnesium L-Threonate is commonly selected for premium supplement formulations positioned around cognitive wellness and healthy aging. Finished-product claims and labeling should be reviewed according to the requirements of the destination market.
Sleep & Relaxation Formulations
It may also be considered for magnesium-based sleep and relaxation supplement concepts, depending on formulation design, dosage strategy, and applicable local regulatory requirements.
Supply for OEM & Contract Manufacturers
Bulk Magnesium L-Threonate Powder is available for supplement brands, OEM and contract manufacturers, and ingredient distributors requiring defined specifications, batch documentation, sample evaluation, and commercial ingredient supply.
How to Choose the Right Grade / Form
1. Confirm the Assay Basis
Review how Magnesium L-Threonate content is defined and reported in the product specification. The assay basis should be clear before comparing material from different suppliers or evaluating a new batch.
2. Review Elemental Magnesium
Elemental magnesium should be evaluated separately from total Magnesium L-Threonate content because it affects formulation calculations, serving-size design, and finished-product labeling.
3. Match the Material to the Dosage Form
Capsules, tablets, powder blends, and stick packs may have different requirements for particle size, flowability, moisture control, and processing behavior. The intended dosage form should therefore be confirmed before final material selection.
4. Evaluate the Final Formulation
For powder drinks, sachets, stick packs, and other multi-ingredient systems, compatibility should be evaluated in the actual formulation rather than judging the raw material in isolation.
5. Confirm Quality and Documentation Requirements
Before commercial sourcing, buyers should confirm the required quality parameters, batch documentation, packaging, and destination-market requirements so that the supplied specification matches the intended project.
Buyers comparing different magnesium forms for supplement formulations may also review our Magnesium Glycinate Powder for a chelated magnesium ingredient option with different elemental magnesium and formulation characteristics.
Technical & Formulation Notes
Technical Notes
Magnesium L-Threonate is the magnesium salt of L-threonic acid and is used in dietary supplement formulations where the L-threonate form is part of the product positioning.
For formulation and sourcing, elemental magnesium should be reviewed separately from total Magnesium L-Threonate assay. Buyers should confirm the declared elemental magnesium value, assay basis, particle characteristics and relevant quality limits in the product specification or batch COA before formulation work.
For powder blends, stick packs or other dry systems, final-product testing is recommended because flowability, moisture sensitivity, taste profile and interaction with other ingredients may affect processing and finished-product performance.
Manufacturing & Process
Magnesium L-Threonate Powder is typically produced through controlled synthesis, purification and drying, followed by in-process and finished-product quality control according to the applicable product specification.
Compatibility / Formulation Notes
- Capsules and tablets: evaluate particle size, flowability, and handling behavior according to the intended manufacturing process.
- Powder blends and premix systems: compatibility may vary with pH, moisture, processing conditions, flavors, minerals, and other active ingredients; pilot-scale evaluation is recommended.
- Moisture control: keep the material sealed and dry during storage, transport, and repacking to help maintain powder handling consistency.
- Final formulation validation: performance should be confirmed in the finished formulation rather than based only on the raw material specification.
Extended QC & Test Items
- Identity and assay
- Elemental magnesium
- Moisture / loss on drying
- Particle size, where specified
- Heavy metals
- Microbiological limits
- Batch COA and traceability
Product specifications
| Test | Specification | Method |
|---|---|---|
| Assay (as Magnesium L-Threonate) | 98-102% (per specification) | Per spec |
| Elemental Magnesium (Mg) | 7.2-8.3% (typical range, per spec) | ICP-OES/ICP-MS |
| Molecular formula / MW | C8H14MgO10; 294.50 g/mol (anhydrous) | Reference |
| Appearance | White to off-white powder | Visual |
| Solubility | Highly soluble in water (confirm in TDS for your system) | Per spec |
| Loss on drying (LOD) | Meets agreed limits (per specification) | USP (typical) |
| Heavy metals | Meets destination-market limits (as required) | ICP-MS (typical) |
| Microbiology (food/supplement grade) | Meets agreed limits (as required) | USP/ISO (typical) |
Storage, Shelf Life & Packaging
Storage
Store in a cool, dry, and well-ventilated area. Keep tightly sealed in the original container with inner liner intact. Protect from moisture and direct sunlight. Avoid repeated opening in high-humidity environments; reseal immediately after each use.
Moisture control is recommended during transit and warehouse operations (e.g., inner liner integrity, desiccant when applicable). Prevent exposure to water during loading/unloading.
Shelf Life
24 months from the manufacturing date when stored in the original, unopened packaging under recommended conditions. After opening, keep containers sealed between uses and use promptly after opening. Refer to the COA/batch label for the exact retest/expiry information.
Packaging & Logistics
Sample Packing
1–5 kg aluminum foil bag; shipping charged.
Bulk Packing
Typically 25 kg/bag, carton, or drum with inner liner; moisture protection can be arranged on request.
Customization
Custom packaging, labeling, and export-mark discussion can be arranged according to destination and project needs.

Supply, Documentation & Customization
Documents & Compliance
COA, SDS/MSDS, and TDS/spec sheet available based on product and market requirements.
Customization & Private Label
Custom packing, private label, and labeling support available depending on product type and order scope.
Commercial Support
Sample, lead time, and incoterm options can be discussed according to destination market and supply plan.
Why Source From Lifeworth
- Specification-focused sourcing — support for buyers reviewing assay basis, elemental magnesium, particle characteristics, and application requirements before commercial purchase.
- Batch documentation support — batch COA available, with TDS/specification and SDS/MSDS provided according to project requirements.
- Sample-to-bulk supply — support for initial evaluation samples, pilot quantities, and commercial bulk orders.
- Export and OEM supply support — packaging, labeling, and shipping coordination for supplement brands, contract manufacturers, OEM projects, and ingredient distributors.

FAQ
1. Do you supply Magnesium L-Threonate Powder in bulk?
Yes. Lifeworth supplies Magnesium L-Threonate Powder for sample evaluation, pilot orders, and commercial bulk purchasing. Packaging and shipping arrangements can be confirmed according to order quantity and destination.
2. Can you supply Magnesium L-Threonate Powder for OEM projects?
Yes. We supply Magnesium L-Threonate raw material for supplement brands, OEM manufacturers, contract manufacturers, and ingredient distributors. Buyers can provide their target specification, dosage form, and required quantity for project review.
3. What is the bulk price of Magnesium L-Threonate Powder?
Bulk pricing depends on order quantity, product specification, packaging, and shipping destination. Please provide your required quantity and delivery location so we can prepare a project-based quotation.
4. What documents can you provide?
Batch COA is available, while TDS/specification sheets and SDS/MSDS can be provided according to project requirements. Additional documentation can be reviewed based on the destination market and buyer requirements.
5. Is elemental magnesium content the same as Magnesium L-Threonate assay?
No. Total Magnesium L-Threonate assay and elemental magnesium are different specification parameters. Elemental magnesium should be reviewed separately when calculating formulation levels and finished-product labeling.
6. Is Magnesium L-Threonate suitable for all powder or premix systems?
Not necessarily. Performance may vary according to formulation composition, pH, moisture, processing conditions, and interaction with other ingredients. Evaluation in the intended formulation is recommended before commercial scale-up.
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