Magnesium Bisglycinate (Magnesium Glycinate) chelate, 14% / 18% elemental Magnesium specifications. Sourced through qualified production partners for dietary supplement manufacturers.
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Available Specifications
Per MG-001 (Verified 2026-09-20):
| Specification Level | Elemental Mg Content |
| Magnesium Glycinate 14% Mg (Standard, Buffered) | 14.0% |
| Magnesium Glycinate 18% Mg (Premium, Higher Load) | 18.0% |
| Magnesium Bisglycinate Chelate (Standard, 2:1 Glycine:Mg) | Per spec |
Specifications subject to product requirements and destination-market regulations.
Product Overview
| Form | Magnesium Bisglycinate chelate (2 glycine molecules + 1 Mg) |
| Active marker | Elemental Magnesium content |
| Appearance | White to off-white fine powder |
| CAS No. | 14783-68-7 (Magnesium Bisglycinate); 56-40-6 (Glycine) |
| Molecular formula | C4H8MgN2O4 |
Technical Specifications
| Test Item | Specification | Method |
| Appearance | White to off-white fine powder | Visual |
| Magnesium Content | ≥ 14.0% or ≥ 18.0% | EDTA Titration |
| Loss on Drying | ≤ 5.0% | USP <731> |
| Heavy Metals (Pb/As/Cd/Hg) | ≤ 3/1/1/0.1 ppm | ICP-MS |
| Total Plate Count | ≤ 1,000 CFU/g | USP <2021> |
| Yeast & Mold | ≤ 100 CFU/g | USP <2021> |
| E. coli / Salmonella | Negative | USP <2022> |
All specifications subject to product specification and destination-market requirements.
Quality & Documentation
- Certificate of Analysis (COA) per batch with EDTA verification of Mg content
- Heavy metals testing panel (Pb, As, Cd, Hg) via ICP-MS
- Microbiology panel per USP
- Material Safety Data Sheet (MSDS) documentation
- Non-GMO statement
- Allergen statement
- Third-party SGS testing available upon request
Applications
- Dietary Supplements: Considered for use in muscle, bone, cardiovascular, and sleep support formulations.
- Functional Food & Beverage: Considered for fortification in functional beverages (sleep, muscle recovery).
- Sports Nutrition: Considered for use in electrolyte and recovery formulations.
- Cosmeceuticals: Considered for use in topical skincare formulations (mineral supplementation).
Why Source from Nourish Ingredients?
- Specification Matching: Two Mg levels (14%, 18%) for formulation flexibility.
- Supplier Verification: Production partners maintain FSSC 22000, BRCGS, EU Organic, Non-GMO Project, cGMP certifications.
- Sample Comparison: 100-500g samples available for specification evaluation.
- Third-Party Testing: SGS verification available for Mg content, heavy metals, and microbiology.
- Documentation Support: Comprehensive documentation package including COA, MSDS, allergen, and Non-GMO statements.
Supply & Ordering
- Sample Availability: 100-500g samples available; standard samples ship within 5-7 business days.
- Minimum Order Quantity (MOQ): 25 kg for standard specifications; smaller quantities for evaluation.
- Lead Time: 7-15 business days from order confirmation.
- Packaging: 25 kg fiber drum with double food-grade PE liner; custom packaging available.
- Shipping: Worldwide shipping via air, sea, or courier; documentation prepared for customs clearance.
Frequently Asked Questions
Q1: What's the difference between Magnesium Glycinate 14% and 18%?
The 14%/18% difference reflects elemental Magnesium content measured via EDTA titration. 18% is the higher load, more efficient per-gram formulation; 14% is the standard buffered specification with better taste profile.
Q2: What is Magnesium Bisglycinate?
Magnesium Bisglycinate is a chelated form of magnesium where two glycine molecules are bound to one magnesium ion. It is considered one of the most bioavailable and gentle (non-laxative) forms of magnesium.
Q3: Can Magnesium Glycinate be combined with other ingredients?
Magnesium Glycinate is commonly combined with Vitamin B6 (P5P), Zinc, and L-Theanine in sleep and relaxation formulations. We recommend consulting with your formulation team.
Q4: What's the regulatory status in the EU?
Magnesium Bisglycinate is permitted as a food supplement ingredient in the EU. Specific regulatory status depends on intended application and labeling.
Q5: How is Magnesium content measured?
Magnesium content is quantified via EDTA complexometric titration per USP / Ph. Eur. methods.
Q6: What's the typical MOQ?
Standard MOQ is 25 kg. Smaller quantities (5-10 kg) are available for evaluation.
Q7: Do you offer custom specifications?
Yes. Custom specifications (e.g., specific Mg content, particle size, packaging) can be discussed with our coordination team.
Q8: What documentation is available?
Standard documentation includes COA, MSDS, allergen statement, Non-GMO statement. Additional documentation available upon request from production partners.
Related Resources
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Compliance Note
Data marked as "typical" reflects industry standards; specific values vary by supplier and batch. Documentation including COA, MSDS, allergen, and Non-GMO documentation is available upon request from production partners.
About Nourish Ingredients: We are a China-based sourcing partner for botanical extracts and nutraceutical ingredients. We coordinate supply for international brands — from specification matching to delivery. Production partners maintain FSSC 22000, BRCGS, EU Organic, USDA Organic, FAMI-QS certifications. Documentation available upon request.
For ingredient sourcing inquiries: ashely@nourishingr.com
Reviewed by: Nourish Ingredients Editorial Team Version: 2.3 Last updated: 2026-09-20