Brief Introduction to Magnesium Glycinate
Magnesium Glycinate (also known as Magnesium Bisglycinate or Magnesium Diglycinate) is a chelated form of magnesium in which the mineral is chemically bonded to two molecules of the amino acid glycine. This chelation significantly enhances the stability of the compound during digestion, protecting the magnesium ion from interference by other dietary components and stomach acid. As a result, Magnesium Glycinate is absorbed via amino acid transport pathways rather than passive diffusion, delivering superior bioavailability and exceptional gastrointestinal tolerance-free from the laxative side effects commonly associated with inorganic magnesium salts such as magnesium oxide or magnesium citrate.
Glycine, the amino acid carrier in this complex, is itself an inhibitory neurotransmitter with naturally calming properties that promote relaxation and support healthy sleep architecture. This makes Magnesium Glycinate a preferred choice for premium supplement formulations targeting sleep support, stress management, muscle recovery, and overall nervous system health.
Our Magnesium Glycinate Powder is manufactured in a cGMP-certified facility using a fully reacted chelation process, ensuring batch-to-batch consistency, high purity (≥99%), and strict compliance with international pharmacopoeia standards. Each shipment is accompanied by a comprehensive Certificate of Analysis (COA), Safety Data Sheet (SDS), and product specification sheet.
Physical & Chemical Parameters
| Parameter | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Odor | Odorless |
| Assay (Magnesium Glycinate) | ≥99.0% |
| Magnesium Content (Elemental Mg, on dried basis) | ≥20.0% |
| Glycine Content | ≥80.0% |
| Loss on Drying | ≤1.0% |
| pH (10 g/L solution) | 9.0 – 12.0 |
| Solubility | Soluble in water; insoluble in ethanol |
| Particle Size | 100% through 80 mesh (customizable) |
| Bulk Density | 0.4 – 0.6 g/mL (typical) |
Magnesium Glycinate benefits
- Superior Bioavailability: The chelated bisglycinate structure protects magnesium ions from gastric interference, enabling absorption via amino acid transport pathways for significantly improved uptake compared to inorganic salts.
- Gentle on the Stomach: Highly gastrointestinal-tolerant; does not cause loose stools or digestive discomfort often associated with magnesium oxide, citrate, or sulfate.
- Promotes Restful Sleep: Magnesium supports nervous system regulation while glycine acts as an inhibitory neurotransmitter, working synergistically to improve sleep quality and duration.
- Supports Muscle Function & Recovery: Helps reduce muscle cramps, spasms, and post-exercise soreness by participating in protein synthesis and energy metabolism.
- Maintains Cardiovascular Health: Contributes to healthy blood pressure regulation and normal heart rhythm maintenance.
- Stress & Mood Support: Helps modulate the body's stress response and supports a calm, balanced mood.
- Bone Health Maintenance: Plays a critical role in calcium metabolism and bone density preservation.
- Neutral Taste Profile: No bitter aftertaste, making it ideal for powder blends, stick packs, and functional beverages.
Magnesium Glycinate Uses
- Dietary Supplements: Capsules, tablets, softgels, gummies, powder blends, stick packs, and effervescent tablets
- Functional Foods: Milk-based products, baked goods, cereal bars, and nutritional powders
- Sports Nutrition: Post-workout recovery drinks, electrolyte formulations, and endurance supplements
- Sleep & Stress Formulas: Sleep aid blends, relaxation supplements, and adaptogenic formulations
- Pharmaceutical Preparations: Migraine prophylaxis supplements and adjuvant mineral therapy
- Cosmetics & Personal Care: Soothing skincare products, facial masks, and topical calming formulations
- Animal Nutrition: Feed-grade supplements for livestock and poultry
- Plant Nutrition: Agricultural-grade formulations as growth enhancers (for select markets)
Certificate of Analysis (COA)
Note: A representative COA is shown below. Actual COA for each batch is provided upon shipment.
| Test Item | Specification | Result |
|---|---|---|
| Appearance | White to off-white crystalline powder | Conforms |
| Identification (IR) | Match reference standard | Conforms |
| Assay (Magnesium Glycinate) | ≥99.0% | 99.2% |
| Magnesium Content (elemental) | ≥20.0% | 20.3% |
| Glycine Content | ≥80.0% | 81.5% |
| Loss on Drying | ≤1.0% | 0.42% |
| pH (10g/L) | 9.0 – 12.0 | 10.2 |
| Lead (Pb) | ≤3.0 ppm | <0.5 ppm |
| Arsenic (As) | ≤1.0 ppm | <0.2 ppm |
| Mercury (Hg) | ≤1.0 ppm | <0.1 ppm |
| Cadmium (Cd) | ≤1.0 ppm | <0.1 ppm |
| Total Plate Count | ≤1,000 CFU/g | <10 CFU/g |
| Yeast & Mold | ≤100 CFU/g | <10 CFU/g |
| E. coli | Negative | Negative |
| Salmonella | Negative (per 25g) | Negative |
| Particle Size (80 mesh) | ≥95% through | 98% |
| Conclusion | - | Meets specification |
Frequently Asked Questions (FAQ)
Q: What is the difference between Magnesium Glycinate and Magnesium Bisglycinate?
A: There is no chemical or functional difference. Magnesium Bisglycinate is the scientifically accurate name (one magnesium ion bonded to two glycine molecules), while Magnesium Glycinate is the common name used on product labels. Both refer to the same fully chelated compound.
Q: What is your MOQ? Can I order samples?
A: Our standard MOQ is 1 kg per product. Yes, free samples (5–20 g) are available upon request; shipping charges may apply for sample delivery.
Q: What certifications do you hold?
A: Our facility is certified with ISO 9001, cGMP, and HACCP. We operate from an FDA-registered facility and comply with international food safety standards.
Q: Do you provide COA, SDS, and other documentation with each shipment?
A: Yes. Every batch is accompanied by a Certificate of Analysis (COA), Safety Data Sheet (SDS), product specification sheet (TDS), and any additional documentation required for import clearance.
Q: Is this product fully chelated or buffered?
A: Our Magnesium Glycinate Powder is fully reacted (fully chelated), not blended or buffered with magnesium oxide. This ensures optimal absorption and gastrointestinal tolerance.
Q: What is the elemental magnesium content?
A: Our product contains approximately 14–16% elemental magnesium by weight (≥20% on a dried basis as magnesium glycinate).
Q: Is this product suitable for vegan and non-GMO formulations?
A: Yes. Our Magnesium Glycinate Powder is non-GMO and suitable for vegan formulations. Certificates of non-GMO and vegan compliance are available upon request.
Q: How should the product be stored, and what is the shelf life?
A: Store in tightly sealed original containers in a cool, dry place away from direct sunlight and moisture. Under proper storage conditions, shelf life is 24 months.
Q: What is the solubility characteristic of this powder?
A: Magnesium Glycinate Powder is soluble in water but insoluble in ethanol. The dissolution rate may vary depending on water temperature and agitation conditions.
Q: Do you offer custom specification adjustments or OEM formulations?
A: Yes. We offer OEM/ODM services, including custom particle size, custom packaging, and formulation development for finished dosage forms. Please contact our sales team for a detailed discussion.
Why Choose Us?
Your Professional Manufacturing & Sourcing Partner
We are more than a supplier - we are a comprehensive supply chain partner dedicated to high-quality ingredients, custom formulations, and finished products across multiple industries.
Professional Expertise
With years of experience in plant extracts, food additives, cosmetic raw materials, and nutritional ingredients, our team brings deep technical knowledge and market insight to every partnership.
01
Diverse Product Range
We offer a broad range of products, including food additives, plant extracts, fruit & vegetable powders, cosmetic actives, and functional food ingredients.
02
One-Stop Shop
Raw Materials: High-purity ingredients for food, beverage, supplement, and cosmetic applications.
Finished Products: In-house manufacturing of capsules, soft gels, gummies, liquid drops, and blended powders.
03
OEM/ODM/OBM Services
Label Design & Packaging: Custom branding tailored to your target market.
Formulation & R&D: Expert support to develop custom blends, proprietary formulas, and innovative products.
Global Logistics: Reliable shipping, documentation, and customs clearance support.
04
Quality Assurance
Strict adherence to GMP standards and full regulatory transparency. We stay current with global requirements, including FDA GRAS, EFSA, and other regional regulations, to ensure your products meet the highest safety and compliance standards.
05
Contact Us
Contact our sales team to discuss your requirements for Magnesium Glycinate Powder.
Please get in touch with us at ella.zhang@huilinbio-tech.com.





Disclaimer: This product is intended for manufacturing and formulation purposes. Statements regarding health benefits are based on general nutritional science and not intended to diagnose, treat, cure, or prevent any disease. Regulatory status may vary by country; buyers are responsible for ensuring compliance with local regulations.
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