Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Fadogia Agrestis | Schisandra (Schisandra chinensis) | |
|---|---|---|
| Category | Adaptogens | Adaptogens |
| Standard Dose | 400-600mg daily | 500-1000mg daily (standardized to >2% schisandrins) |
| Timing | Morning with food. | Morning or split AM/PM. With meals. |
| Cycle Duration | Cycle 4-8 weeks on, 2-4 weeks off (limited long-term safety data) | Cycle 8-12 weeks on, 2-4 weeks off |
| Evidence Level | animal_plus_anecdotal | moderate_human |
Fadogia agrestis stem extract contains saponins and alkaloids that appear to increase luteinizing hormone (LH) release from the anterior pituitary, stimulating Leydig cell testosterone production. Animal studies suggest it may also have direct effects on testicular steroidogenic enzymes and may increase testicular weight. The saponin content may modulate gonadotropin-releasing hormone (GnRH) pulse frequency. The aphrodisiac effects are likely mediated through increased testosterone and possibly direct effects on dopaminergic and nitrergic pathways.
400-600mg daily
Morning with food.
Cycle 4-8 weeks on, 2-4 weeks off (limited long-term safety data)
Schisandra berries contain lignans (schisandrin A, B, C; gomisin A, N) that are the primary bioactives. Schisandrin B is a potent inducer of hepatic Phase I (CYP450) and Phase II (glutathione S-transferase, UDP-glucuronosyltransferase) detoxification enzymes. Schisandra activates Nrf2/ARE pathway, increases glutathione synthesis, and has hepatoprotective effects by stabilizing hepatocyte membranes. It modulates the HPA axis, reduces cortisol, enhances mental performance under stress via cholinergic and catecholaminergic modulation, and improves mitochondrial function through enhanced cytochrome c oxidase activity.
500-1000mg daily (standardized to >2% schisandrins)
Morning or split AM/PM. With meals.
Cycle 8-12 weeks on, 2-4 weeks off
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