Description
Osavi Magtein Magnesium L-Threonate 90 Vegan Caps is the ideal starter size for those new to Magtein — the patented magnesium form uniquely proven to cross the blood-brain barrier and raise magnesium levels in the brain. Standard magnesium supplements cannot do this; Magtein specifically targets neurological magnesium for cognitive and memory support.
The 90-capsule size provides approximately one month’s supply at the standard dose — enough to begin experiencing Magtein’s cognitive benefits and decide whether to commit to the larger 180-capsule bottle.
Key Benefits:
- Magtein — the only magnesium proven to cross the blood-brain barrier
- Supports cognitive function, memory and learning
- 90 vegan caps — ideal starter size
- Clean formula from Osavi
- From Osavi — quality European supplements
Take as directed daily. Best with consistent long-term use for full neurological benefits.




