Most magnesium supplements raise serum and intracellular magnesium levels throughout the body, but they do not meaningfully increase magnesium concentrations in the brain. The blood-brain barrier is selective, and standard forms (citrate, glycinate, oxide) have limited CNS penetration.
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Mag Threonate
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✓Crosses the blood-brain barrier.
✓Supports synaptic plasticity.
✓Clinically studied dose.
✓Promotes calm without sedation.

