Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Pycnogenol | Pyrroloquinoline Quinone (PQQ) | |
|---|---|---|
| Category | Supplements | Supplements |
| Standard Dose | — | — |
| Timing | — | — |
| Cycle Duration | — | — |
| Evidence Level | Moderate | Moderate |
Polyphenol-rich French maritime pine bark extract that improves endothelial nitric oxide signaling, capillary tone, and oxidative defense.
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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