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🧠 Elevate your mind, own your day — the smart supplement for sharp pros.
Swanson Magtein Magnesium L-Threonate delivers 144 mg of magnesium per serving in 90 vegan capsules designed to support cognitive function, memory, and focus. Manufactured in GMP-certified facilities with third-party testing, this supplement combines decades of scientific expertise to provide a pure, potent brain health formula optimized for absorption.










| Asin | B005OVKUSW |
| Date First Available | September 23, 2011 |
| Item Model Number | SWU700 |
| Manufacturer | Swanson Ultra |
| Product Dimensions | 2.3 x 2.3 x 4.4 inches; 3.7 ounces |
User
Helps with sleep too
Helps with slerp
User
I can now sleep through the night!
Exceptional product! I can now sleep through the night and not wake up once! I did not experience a bad taste as others noted. Can’t speak to the memory boost yet. But getting better sleep is the reason I will keep using this product!
User
Productos Swanson
Excelente producto, lo recomiendo totalmente
User
Good night’s sleep
I was having trouble going back to sleep after waking up at night but since starting to take Magtein I’m sleeping like a log. I seem to be dreaming a lot but they’re pleasant dreams. I’ve recommended it to several of my friends too.
User
Takes care of cramps
These have been doing a good job with my nightly cramps. Best taken with food otherwise a bit of stomach upset. Only taking one is taking care of the issue, and extending the money's worth.
User
Suplemento
Lo recomendó me ha ayudado bastante en mi sistema.
User
Caution: Allergic reaction
Had an allergic reaction multiple times. After taking only 1 per day for 2-3 days, I had swelling and a rash on my right knee. I wasn't sure what caused it, so I stopped taking these. After a week, with no other symptoms, I thought maybe it was something else that caused it. So I started taking these again, just 1 per day, at night, and after 2-3 days, the same swelling and rash returned to my right knee. I'm not sure what is in these, or if the product label is correct, but I am definitely allergic.
User
Doktor’s recommendation
I recently started taking Swanson Magnesium L-Threonate based on my doctor’s recommendation. It’s still very new, so I need a bit more time to form a clear opinion, but I trust my doctor’s judgment. If they recommended it, I believe there’s a good reason behind it.
Trustpilot
2 weeks ago
5 days ago