Magnesium L Threonate, Magtein - NSF Certified - Sleep and Cognitive…
Amazon.comPosted 5 months ago
Our verdict
Magnesium L Threonate, Magtein - NSF Certified - Sleep and Cognitive… works out to $0.25 per serving of magnesium l-threonate, at 2mg per serving in capsule form. That puts it the cheapest quarter of the 15 magnesium l-threonate products we can price per dose, where the typical serving costs $0.34, a Value Index of 1.4 where the median product is 1.0. One container lasts 120 days at the label dose of 1 serving a day, about $7.49 a month. We could not verify a third-party certification for Double Wood Supplements in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.
Questions about this product
- How much does one serving of Magnesium L Threonate, Magtein - NSF Certified - Sleep and Cognitive… cost?
- $0.25 per serving, which is 2mg of magnesium l-threonate in capsule form, against a typical $0.34 across the 15 magnesium l-threonate products we can price per dose, a Value Index of 1.4 where the median product is 1.0. Worked out from the current retail price as of 2026-11-13, not the sticker price.
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Lead with cost-per-dose, not vibes.