Source Naturals - Magtein

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Magtein by Source Naturals features magnesium L-threonate, a patented form of magnesium developed to cross the blood-brain barrier more readily than conventional magnesium forms. I t supports cognitive function, memory, and healthy neurological function, making it a practical option for adults focused on brain health and mental clarity.Why It's Worth Considering: Magnesium L-threonate (Magtein®) is backed by preclinical research suggesting it may help maintain synaptic density in the brain, a distinction not typically associated with magnesium oxide or citrate forms. Show more