CPC-1598 vs Magnesium L-Threonate
A side-by-side research comparison of CPC-1598 and Magnesium L-Threonate across mechanism, dosing, half-life, benefits, side effects and research status.
Comparison table
| Attribute | CPC-1598 | Magnesium L-Threonate |
|---|---|---|
| Full name | CPC-1598 (GABAergic Sleep Peptide Analog) | Magnesium L-Threonate (Magtein) |
| Category | Sleep & Recovery | Sleep & Recovery |
| Status | Research compound | OTC supplement |
| Mechanism | Selectively potentiates a3/a5-containing GABA-A subtypes in sleep-promoting VLPO neurons rather than broadly sedating. Promotes natural sleep onset without respiratory depression. | The L-threonate carrier improves brain magnesium uptake, increasing synaptic density and NMDA receptor regulation. This supports memory, learning, and calmer nervous-system tone, and improves sleep architecture. |
| Molecular weight | ~650 Da | 294.5 Da (complex) |
| Half-life | 3-5 hours | Varies (magnesium homeostasis) |
| Bioavailability | Moderate (SubQ) | High brain penetrance vs other magnesium salts |
| Typical dose | 200-500 mcg | ~1.5-2 g compound (~144 mg elemental Mg) |
| Frequency | Once before bed | Once or split daily |
| Route | Subcutaneous | Oral (capsule or powder) |
CPC-1598 reported benefits
- Selective sleep neuron targeting
- No benzo-like dependence
- Natural sleep architecture
- No respiratory depression
- Minimal next-day impairment
Magnesium L-Threonate reported benefits
- Improved sleep quality
- Cognitive and memory support
- Stress and anxiety reduction
- Brain-penetrant magnesium
- Minimal laxative effect
- Neuroprotective potential
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Research and educational reference only. Not medical advice.