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🧠 Unlock your brain’s full potential—because your mind deserves the best.
Source Naturals Magtein Magnesium L-Threonate 667mg capsules deliver a clinically studied form of magnesium designed to enhance cognitive functions including memory, focus, and executive function. Manufactured in the USA under FDA cGMP guidelines, this clean, allergen-free supplement supports stress resilience, mood, and sleep quality, backed by over 40 years of trusted health innovation.









| ASIN | B00B7ZNR52 |
| ASIN | B00B7ZNR52 |
| Age Range Description | 35 years |
| Allergen Information | Soy Free |
| Best Sellers Rank | #28,480 in Health & Household ( See Top 100 in Health & Household ) #571 in Magnesium Mineral Supplements #2,020 in Sales & Deals |
| Brand Name | Source Naturals |
| Concentration | 667 Mg |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,877) |
| Date First Available | January 30, 2013 |
| Flavor | Unflavored |
| Item Form | Capsule |
| Item Nype Name | Magnesium |
| Item Weight | 1.6 ounces |
| Item model number | SN2485 |
| Manufacturer | Source Naturals |
| Manufacturer | Source Naturals |
| Manufacturer Part Number | SN2485 |
| Material Type Free | Dairy Free, Egg Free, Preservative Free, Yeast Free |
| Model Number | SN2485 |
| Number of Items | 1 |
| Primary Supplement Type | Magnesium |
| Product Benefits | Brain Health |
| Product Dimensions | 1.3 x 1.3 x 1.6 inches; 1.6 ounces |
| UPC | 021078024859 |
| Unit Count | 90 Count |
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