Comparison
Magnesium L-Threonate vs Alpha-Lipoic Acid
Magnesium L-Threonate
MIT-developed magnesium that crosses the blood-brain barrier. Shown to enhance synaptic density and reduce 'brain age'.
Alpha-Lipoic Acid
Universal antioxidant active in both lipid and aqueous environments. Supports mitochondrial function and AGE reduction.
| Field | Magnesium L-Threonate | Alpha-Lipoic Acid |
|---|---|---|
| Category | neuroprotective | neuroprotective |
| Dose range | 1000–2000mg | 300–600mg |
| Half-life | 6h | 1h |
| Onset | — | — |
| Evidence | EVIDENCEB | EVIDENCEA |
| Safety | ●●●●● | ●●●●○ |
| Legal (US) | USOTC | USOTC |
| PubMed refs | 90 | 1900 |
The comparison in plain English
Auto-generated from dataMagnesium L-Threonate and Alpha-Lipoic Acid are both in the neuroprotective category respectively. Magnesium L-Threonate MIT-developed magnesium that crosses the blood-brain barrier. Alpha-Lipoic Acid Universal antioxidant active in both lipid and aqueous environments.
Bottom line
Magnesium L-Threonate (evidence B, safety 5/5) has a stronger evidence base than Alpha-Lipoic Acid (evidence A, safety 4/5). Magnesium L-Threonate has the slightly cleaner safety profile. For users new to either, the higher-evidence option is the safer first try.
Choose Magnesium L-Threonate if
Magnesium L-Threonate is the better fit when your goal aligns with its mechanism (L-threonate is a sugar-acid carrier that uniquely enables magnesium to cross the blood-brain barrier in meaningful quantities — most oral magnesium forms (oxide, citrate, glycinate) raise serum magnesium but not central magnesium) and the dose range (1000–2000mg) suits your protocol. Half-life is 6h.
Choose Alpha-Lipoic Acid if
Alpha-Lipoic Acid is the better fit when your goal aligns with its mechanism (A 'universal' antioxidant — uniquely active in both lipid (cell membrane) and aqueous (cytoplasm) environments because of its dithiol functional group) and the dose range (300–600mg) suits your protocol. Half-life is 1h.