Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Phosphatidylserine (PS) | Pyrroloquinoline Quinone (PQQ) | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | — | — |
| Timing | — | — |
| Cycle Duration | — | — |
| Evidence Level | Moderate-Strong | Moderate |
Phospholipid concentrated in brain cell membranes. Supports neurotransmitter production (acetylcholine, dopamine), cortisol regulation, and membrane fluidity. Improves cognitive function, reduces exercise-induced cortisol, and supports HPA axis recovery.
Redox cofactor that stimulates mitochondrial biogenesis via PGC-1alpha activation. Potent antioxidant (5000x more efficient than vitamin C in redox cycling). Supports nerve growth factor (NGF) synthesis and protects neurons from oxidative damage.
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