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$29.95
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Ace your supplement ritual with Mag LT™ (Magnesium L-threonate) from Sports Research®. Made with Magtein®, a patented compound developed by researchers at MIT, it’s the only form of magnesium that effectively crosses the blood-brain barrier and increases magnesium levels in the brain critical for improving cognitive function.*
4.8
66 ratings
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relaxes me I sleep well with it
Jamesmichael · Yesterday
Delivered timely and like the product.
W
WRENDA · October 18, 2026
I've been a SR customer for a long time. I like their new packaging. Hugh quality products that are frequently 3rd party reviewed.