Muscle function
Magnesium contributes to normal muscle contraction and relaxation. This helps maintain everyday movement and normal muscle activity.*
120 mg of magnesium. Muscle, nerve and energy support.
Choose the amount and form that fit your nutritional needs.
MAGNESIUM GLYCINATE
Magnesium contributes to normal muscle contraction and relaxation. This helps maintain everyday movement and normal muscle activity.*
Magnesium supports normal nerve signaling. Normal nerve and muscle activity depend on a balanced supply of essential minerals.*
Magnesium helps enzymes involved in the body’s production and use of energy. These enzyme processes help your body use nutrients from everyday meals.*
Magnesium contributes to the structure and maintenance of healthy bones. It complements dietary mineral nutrition rather than replacing it.*
Magnesium helps maintain normal electrolyte balance. It is one of the minerals involved in normal fluid and electrical balance.*
Magnesium participates in the normal synthesis of proteins and cellular materials. These are ordinary building processes involved in tissue maintenance.*
One clearly identified magnesium form. 120 mg elemental magnesium per capsule.

Magnesium bound to two glycine molecules. A clearly identified amino acid chelate, with the elemental magnesium amount stated on the label.
In a four-week randomized, placebo-controlled study of 155 adults reporting poor sleep, 250 mg/day of magnesium as bisglycinate improved self-reported sleep difficulty scores.
Schuster et al., 2025
Named ingredient forms. Human research. Published testing.
| What to look for | CoreLabs | Brand 1 | Brand 2 | Brand 3 |
|---|---|---|---|---|
| Heavy-metal testing | ✓ | ✓ | — | — |
| Microbiological testing | ✓ | ✓ | — | — |
| Independent laboratory testing | ✓ | — | — | — |
| Clinically researched ingredients | ✓ | — | — | — |
| Dose disclosed | ✓ | ✓ | ✓ | ✓ |
| No proprietary blend | ✓ | ✓ | ✓ | ✓ |
✓ Verified · — Not verified

OUR QUALITY STANDARD
Quality is personal. Our standard centers on heavy-metal and microbiological testing, clear specifications, and documented results.
CAREFUL TESTING. CLEAR DOCUMENTATION.
Consult a healthcare professional before use if pregnant, nursing, taking medication, or managing a medical condition. Keep out of reach of children.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Nu-FILL™, Nu-FLOW®, and Nu-MAG® are trademarks of RIBUS, Inc. All trademarks are property of their respective owners.