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Quick Specs
FormBisglycinate (Chelated)
Elemental Mg~14–16%
Purity≥98% (HPLC)
Shelf life24 months
MOQ1 kg (sample); 5 kg (commercial)
Nutraceuticals

Magnesium Glycinate

Bisglycinate Chelate High Bioavailability GI Friendly ≥98% Purity
The most bioavailable, GI-tolerable form of magnesium — the mineral involved in over 300 enzymatic reactions and deficient in the majority of modern adults.
Magnesium is the fourth most abundant mineral in the human body and the second most common intracellular cation after potassium — and it is among the most widely formulated minerals in the supplement category, specified across the sleep, sports and general-wellness segments. Any claim position on a finished product is the manufacturer's decision and depends on the destination market.

Magnesium Bisglycinate is the scientifically preferred form for supplementation because glycine chelation protects the magnesium ion from competing minerals and phytates in the digestive tract, and enables absorption via high-affinity amino acid transporters — bypassing the bottlenecked mineral ion channels that limit inorganic magnesium salts. The result is 2–4× higher cellular magnesium delivery per gram, with no osmotic laxative effect. For premium supplement brands, this means smaller serving sizes, better tolerability ratings, and higher consumer satisfaction and re-purchase rates.
Available specifications
Magnesium Bisglycinate≥98% chelate (HPLC)
Elemental Mg~14–16%
Granular gradefor tablet compression and stick packs
Buffered gradereduced laxation profile
  • Chelate content versus elemental magnesium — the two figures are not the same and are the most common source of specification confusion on this material. Chelate content is ≥98%; elemental magnesium is approximately 14–16%. Confirm which basis your specification uses before comparing supplier quotations.
  • Granular grade — supplied for tablet compression and stick-pack filling, where the standard 40–80 mesh powder can present flow or dust issues at scale.
  • Buffered grade — available where a lower laxative effect is required by the finished-product profile. Specify at enquiry, as it is a distinct grade rather than a processing option.
  • Freely soluble in water — carries readily in aqueous, beverage and instant formats without a solubiliser.
  • Moisture specification — NMT 8%, considerably wider than the amino acids in this range, which is normal for a chelate. Material ships in moisture-proof, airtight export packaging.
  • Bulk density and fill volume — elemental magnesium at 14–16% means a meaningful powder load to reach common target inclusions. Factor this into capsule size and tablet weight early in formulation.
  • Packaging — 1 kg double-sealed aluminium foil bags, and 5 kg and 25 kg fibre drums with food-grade inner liners. Custom pack sizes available for private-label and research batches.
  • Documentation — each batch ships with a CoA covering chelate content by HPLC, elemental magnesium, heavy metals at NMT 10 ppm with lead at NMT 1 ppm, moisture at NMT 8% and microbial limits.
Capsule and tablet supplements
Sleep-category formulations
Sports and recovery formats
Powder blends and stick packs
Functional beverages
Food fortification
Combination mineral formats
Private-label and contract manufacture
Chemical nameMagnesium Bisglycinate (Magnesium diglycinate)
Molecular formulaMg(C₂H₄NO₂)₂
Molecular weight172.43 g/mol
CAS number14783-68-7
FormChelated bisglycinate (Mg²⁺ + 2× glycine)
Elemental magnesium~14–16% (verified by ICP-OES or AAS)
Purity (HPLC)≥98% chelate content
AppearanceWhite to off-white free-flowing powder
SolubilityFreely soluble in water
Particle size40–80 mesh (standard); granular grade on request
Moisture contentNMT 8%
pH (10% solution)6.0–8.0
Heavy metalsNMT 10 ppm; Lead NMT 1 ppm
Shelf life24 months (sealed, cool, dry)
Microbial limitsComplies with USP/BP standards
StorageBelow 25°C, airtight container, away from moisture
1 kg aluminium foil bags (double-sealed)
5 kg and 25 kg fibre drums with food-grade inner liners
Moisture-proof, airtight export-grade packaging
Custom pack sizes for private-label and clinical batches
Quality Assurance

Tested at Every Stage

Every Magnesium Bisglycinate batch is verified for chelate content, elemental magnesium, and microbial safety. Full documentation with every shipment.

01

Chelate verification

HPLC assay confirms ≥98% bisglycinate chelate content. Elemental magnesium content verified by ICP-OES or AAS per batch.

02

Heavy metals panel

Lead, arsenic, mercury, and cadmium tested per USP/BP limits. Mineral supplements require rigorous metals testing — we do it on every batch.

03

Microbial safety

Total plate count, E.coli, Salmonella, yeast & mould — verified against international food safety standards before release.

04

Full documentation

COA, MSDS, Phytosanitary Certificate, elemental Mg data sheet, and all export documents issued before every shipment.

Formulator's Guide

Magnesium Forms Compared: Why Bisglycinate Wins

Not all magnesium supplements are equal. The form of magnesium determines how much actually reaches cells, how well it is tolerated, and ultimately how satisfied your customers are. Here is how the most common magnesium forms compare on the parameters that matter most to supplement formulators and brand owners.

Form Elemental Mg % Bioavailability GI Tolerance Best Use
Magnesium Bisglycinate ✓ ~14–16% Excellent (chelated) Excellent — no laxative effect Sleep, stress, premium supplements
Magnesium Citrate ~16% Good Moderate — laxative at high dose Constipation relief, general Mg
Magnesium Malate ~15% Good Good Energy, fibromyalgia formulas
Magnesium L-Threonate ~8% Excellent (brain) Good Cognitive health — high cost
Magnesium Oxide ~60% Poor (~4%) Poor — strong laxative Low-cost fillers only
Magnesium Sulfate ~20% Moderate Poor — strong laxative IV use; Epsom salts (topical)
Buyer FAQs

Common Questions about Magnesium Glycinate Sourcing

A standard grade at ≥98% chelate content by HPLC, a granular grade for tablet compression and stick packs, and a buffered grade with a reduced laxation profile.
They are different figures and this is the most common source of specification confusion on this material. Chelate content is ≥98%; elemental magnesium is approximately 14–16%. Confirm which basis your specification is written against before comparing supplier quotations — a quote against chelate content is not comparable to one against elemental magnesium.
Elemental magnesium at 14–16% means a substantial powder load for common target inclusions. Factor this into capsule size and tablet weight early in formulation, since it often determines the dose format.
For tablet compression and stick-pack filling, where the standard 40–80 mesh powder can present flow or dust issues at production scale.
Chelate content by HPLC, elemental magnesium, heavy metals at NMT 10 ppm with lead at NMT 1 ppm, moisture at NMT 8%, and microbial limits.
It is considerably wider than the amino acids in our range, and normal for a chelate of this type. Material ships in moisture-proof, airtight export packaging.
White to off-white free-flowing powder at 40–80 mesh, with a granular grade on request. Freely soluble in water. Shelf life 24 months sealed, cool and dry.
1 kg double-sealed aluminium foil bags, and 5 kg and 25 kg fibre drums with food-grade inner liners. Custom pack sizes are available for private-label and research batches.
Against your specification and volume. Grade, mesh cut and pack size all move the price. State whether your specification is written on chelate content or elemental magnesium so the quote is directly comparable.
Also from SV Botanica

Related Nutraceutical Ingredients

Frequently co-formulated with Magnesium Glycinate.

Supplied as a bulk ingredient for further manufacture. Buyers are responsible for compliance with the regulations of their destination market. This product is not intended to diagnose, treat, cure or prevent any disease.