Dr. Mercola
Dr. Mercola Magnesium L-Threonate (Advanced) – 2,000mg Magtein, 90 Caps

Dr. Mercola magnesium L-threonate option for shoppers comparing patented Magtein form, brain-targeted magnesium, and cognitive-support positioning.
- Review Magtein patent status, magnesium amount per serving, form verification, and any added ingredients on the current label.
- Compare L-threonate form with other magnesium delivery methods for brain bioavailability.