All Supplements
Magnesium L-Threonate vs Alpha-GPC
Side-by-side comparison — benefits, dosage, forms, and research.
Feature
Magnesium L-Threonate
Alpha-GPC
Typical Dosage
1,500-2,000mg (providing ~144mg elemental Mg)
300–600 mg per day
Best Form
Magnesium L-Threonate (Magtein)
Capsule
Key Benefits
5
6
Evidence Rating
★★★
★★★★
Best Time
Evening — has calming/sleep-promoting effects
Split into 2–3 doses with meals; morning and afternoon optimal for cognitive benefits
Magnesium L-Threonate Benefits
✓Crosses blood-brain barrier
✓May improve memory and learning
✓Sleep quality improvement
✓Brain magnesium levels
✓Potential neuroprotective effects
Alpha-GPC Benefits
✓Enhanced memory and recall
✓Improved focus and concentration
✓Increased mental clarity
✓Supports acetylcholine production
✓Promotes neuroplasticity and brain health
✓May improve athletic performance and muscle function
Can You Take Both Together?
In most cases, Magnesium L-Threonate and Alpha-GPC can be taken together safely. However, always check the interactions section of each supplement and consult a healthcare professional if you take medication.
Which Should You Choose?
Choose Magnesium L-Threonate if your primary goal is: crosses blood-brain barrier. Choose Alpha-GPC if your primary goal is: enhanced memory and recall. Many people take both as they target different aspects of health.
Disclaimer: This comparison is for educational purposes only. Always consult a healthcare professional before starting any supplement.