Magnesium Supplement

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NOW Foods Supplements, Magtein™ with patented form of Magnesium (Mg), Cognitive Support*, 90 Veg Capsules

NOW Foods Magtein™ features patented Magnesium L-Threonate for cognitive support*. This 90-count veg capsule formula is designed to cross the blood-brain barrier. Support memory & focus. Buy the bestseller now!

4.6 (7,000)

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Now Foods Supplements Magtein, Magnesium L-Threonate, Cognitive Support*, 180 Veg Capsules

NOW Supplements Magtein® (Magnesium L-Threonate) for cognitive support. Features 180 veg capsules of a patented form of magnesium shown to cross the blood-brain barrier. Supports memory, learning, and overall brain health. Shop this bestseller now!

4.6 (7,000)

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Nature Made Magnesium L-Threonate with Vitamin C & Vitamin D3, Provides 130 mg of Mag from 1800 mg Magnesium L Threonate, Cognitive Support Magnesium Supplement, 90 Capsules, 30 Day Supply

Nature Made Magnesium L-Threonate with Vitamins C & D3 provides 130 mg of elemental magnesium for cognitive support. This 90-capsule supplement supports memory & brain function. Get your 30-day supply now!

4.7 (719)

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Magnesium for Women, Menopause & Peromenopause (90 Capsules)

Provitalize Magnesium for Women (90 Capsules) targets menopause & perimenopause symptoms like hot flashes & mood swings. Supports hormonal balance, sleep & bone health with premium magnesium. Natural relief for women's wellness. Shop now!

4.6 (204)

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January 15, 2026

Magnesium L-Threonate (Magtein): A Complete Guide to Cognitive Support

Explore the science behind Magnesium L-Threonate (Magtein) for brain health. Learn its benefits for memory, focus, and cognitive support, and discover how NOW Foods' formula can help.