Bulk Magnesium Gluconate Powder Supplier in China
99% Pure Ingredient for the most gentle and highly bioavailable forms of magnesium, Wholesale price, Kosher, Halal, FDA-approved
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What is Magnesium Gluconate?
Magnesium Gluconate is a highly bioavailable magnesium salt of gluconic acid, widely used in dietary supplements and functional foods due to its excellent absorption and gentle digestive profile. With the CAS number 3632-91-5, molecular formula C12H22MgO14, and molecular weight of 414.6 g/mol, it typically appears as a white crystalline powder that is soluble in water. Our premium-grade material is produced at 99% purity (HPLC) and packaged securely in 25kg fiber drums for bulk supply. Magnesium is essential for energy production and supports the absorption of key minerals like calcium and potassium, making magnesium gluconate a preferred ingredient in nutraceuticals and pharmaceuticals. ProVita Biotech Co., Ltd. is the leading bulk magnesium gluconate powder supplier in China, offering not only raw material supply but also OEM solutions for capsules, tablets, and blends. In addition, we provide other popular magnesium ingredients including Magnesium Acetyl-Taurate Powder, Magnesium Glycinate Powder, and Magnesium Oxide Powder. Check our full magnesium ingredients here.
Magnesium Gluconate vs Glycinate
Both magnesium gluconate and magnesium glycinate are well-absorbed forms of magnesium, but they serve slightly different purposes. Magnesium gluconate is gentle on the stomach, widely used in supplements and functional foods, and is cost-effective for bulk manufacturing. Magnesium glycinate, on the other hand, has superior bioavailability, calming effects due to its glycine component, and is preferred in premium supplements aimed at stress relief, sleep, and neurological support. For general magnesium supplementation at scale, gluconate is the more economical option. For targeted high-absorption therapeutic use, glycinate is often considered better.
| Feature | Magnesium Gluconate | Magnesium Glycinate |
|---|---|---|
| CAS Number | 3632-91-5 | 14783-68-7 |
| Other Names | Magnesium salt of gluconic acid | Magnesium bisglycinate, magnesium diglycinate |
| Molecular Formula | C12H22MgO14 | C4H8MgN2O4 |
| Molecular Weight | 414.6 g/mol | 172.42 g/mol |
| Appearance | White crystalline powder | White to off-white crystalline powder |
| Food Sources | Found in fortified foods & supplements | Not naturally occurring in food; supplemental form only |
| Specifications | ≥99% (HPLC) | ≥99% (HPLC) |
| Purity | High (food and pharma grade) | High (food and pharma grade) |
| Bioavailability | High, gentle absorption | Very high, one of the most bioavailable forms |
| Potency (Elemental Mg%) | ~5–6% | ~14–16% |
| Dosage (Typical Range) | 200-500 mg/day | 200-400 mg/day |
| Half-life | Moderate, steady release | Moderate, with enhanced retention due to glycine chelation |
| Stability | Stable under normal storage | Stable, but hygroscopic (may attract moisture) |
| Popularity | Widely used in general supplements & functional foods | Increasingly popular in premium supplement lines |
| Pricing (Bulk) | Lower cost (economical for mass production) | Higher cost (premium-grade ingredient) |
| Main Benefits | Supports energy production, bone health, electrolyte balance, muscle function | Supports relaxation, stress reduction, sleep quality, neurological health |
| Typical Use | Nutraceuticals, food fortification, pharma | High-end supplements, stress relief & sleep formulas, therapeutic blends |
Magnesium Gluconate Certificate of Analysis(COA)
The Certificate of Analysis (COA) for ProVita Biotech’s Food Grade Magnesium Gluconate Powder 98% confirms its superior quality and compliance with international standards. The product shows an assay result of 98.88%, ensuring high purity suitable for nutraceutical and pharmaceutical applications. Heavy metals are below 0.002%, and contaminants such as arsenic (<1.0 ppm) and residual substances are strictly controlled, far below the required limits. Packaged securely in 25kg fiber drums, our magnesium gluconate meets USP32 specifications with complete microbiological safety testing, showing absence of E. coli, Salmonella, Listeria, and Staphylococcus aureus. With third-party verification and strict GMP production standards, ProVita Biotech guarantees the quality, safety, and consistency of its magnesium gluconate bulk supply, making it a trusted choice for supplement manufacturers, distributors, and global supplement brands.

Application
Dietary Supplements
Functional Foods & Beverages
With excellent water solubility and stability, Magnesium Gluconate is ideal for fortified foods, sports drinks, and dairy products. It provides an effective way to enhance magnesium intake in functional nutrition and wellness products.
Pharmaceuticals
Pharmaceutical-grade Magnesium Gluconate is used in formulations to correct magnesium deficiency and support cardiovascular and metabolic health. Its proven safety and purity make it suitable for clinical and therapeutic applications.
Magnesium Gluconate Manufacturing Process
At ProVita Biotech Co., Ltd., our Magnesium Gluconate Powder is produced through a strict GMP-certified process to ensure purity, safety, and compliance with international quality standards.
The production begins with raw material acceptance, where only high-quality water and glucono-delta-lactone are selected. A controlled synthesis reaction follows, producing magnesium gluconate, which then undergoes static crystallization to form stable crystalline structures. The material is carefully dried through centrifugal drying and oven drying to remove moisture while maintaining stability.
Next, the product is mixed, crushed, and sieved to achieve uniform particle size. Critical control points include magnetic separation and metal detecting to guarantee product safety. The powder is then packed in 25kg fiber drums after passing package acceptance checks. Finally, the finished magnesium gluconate is moved into secure storage.
The result is a white crystalline powder with an assay of ≥98% purity, often exceeding 99%, free from heavy metals, pathogens, and residual solvents. Every batch conforms to USP standards and is validated with third-party laboratory testing.
With this rigorous process, ProVita Biotech delivers high-quality magnesium gluconate bulk powder trusted by global supplement manufacturers, distributors, and nutraceutical brands.
Magnesium Gluconate Benefits
- Muscle Relief Made Easy: Magnesium Gluconate 500mg may promote muscle relaxation, helping to prevent cramps and support smooth movement so you can stay active, energized, and comfortable.
- Boost Your Bones: By regulating calcium levels, Magnesium Gluconate supports stronger, healthier bones and plays a crucial role in maintaining skeletal health as you age.
- Calm Your Mind & Body: The calming effects of Magnesium Gluconate make it beneficial for magnesium gluconate for sleep and magnesium gluconate for anxiety. It may support mood balance, relaxation, and restorative sleep so you wake up refreshed and clear-minded.
- Heart & Nerve Support: Known to support normal heart and nerve health, Magnesium Gluconate may help maintain cardiovascular function and healthy nerve signaling.
- Powerful Digestive Support: Produced in a GMP-certified facility, Magnesium Gluconate may aid digestion, ease occasional constipation, and encourage proper bowel function for overall comfort.
Where to buy bulk Magnesium Gluconate?
If you are searching for a reliable source of bulk magnesium gluconate powder, ProVita Biotech Co., Ltd. is the trusted choice. As one of the leading magnesium gluconate manufacturers in China, we supply high-purity material directly from our GMP-certified factory. Every batch is supported with Kosher, Halal, and ISO certificates, along with strict third-party testing to ensure consistent quality and safety.
We specialize in pure bulk magnesium gluconate for use in nutraceuticals, pharmaceuticals, and functional foods. For custom formulations, we also supply calcium magnesium gluconate powder and provide OEM services for capsules, tablets, and blended products. Whether you are sourcing raw ingredients for large-scale supplement production or developing private label products, we provide dependable quality at competitive wholesale prices.
ProVita Biotech also offers free samples, flexible order quantities, and international shipment for global distributors and supplement brands. With extensive expertise as a magnesium gluconate supplier, we ensure stable supply, compliance with international standards, and professional service tailored to your business needs.
Contact ProVita Biotech today to request COA documents, bulk quotations, and product samples from a trusted magnesium gluconate manufacturer in China.
FAQs
Magnesium gluconate is more bioavailable and gentler on the stomach, while magnesium oxide contains more elemental magnesium but has lower absorption.
Both are well absorbed, but citrate can have a mild laxative effect. Magnesium gluconate is often chosen for its digestive comfort and consistent absorption.
Magnesium gluconate can be taken with meals for better absorption, often in the evening to support relaxation, sleep quality, and muscle recovery.
ProVita Biotech supplies food- and pharma-grade magnesium gluconate with ≥98% purity, often exceeding 99%, verified by HPLC and third-party testing.
We supply full documentation including GMP, Kosher, Halal, ISO certifications, and third-party COA reports for every batch.
Our standard MOQ is 25kg (1 drum). Larger quantities are available with volume discounts.
Yes. We provide OEM and private label services for capsules, tablets, blends, and customized packaging.
Pricing varies by volume, purity, and contract terms. Contact us for competitive wholesale quotes tailored to your business needs.
It is produced by reacting gluconic acid with high-quality magnesium sources, followed by crystallization, drying, crushing, and sieving to produce a stable, white crystalline powder.
Yes, ProVita Biotech provides free samples for quality testing before placing bulk orders.
Along with magnesium gluconate, we manufacture and supply magnesium glycinate, magnesium oxide, magnesium acetyl-taurate, and other popular magnesium ingredients.