Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.
| Holy Basil (Tulsi) | Tongkat Ali (Eurycoma longifolia) | |
|---|---|---|
| Category | Adaptogens | Adaptogens |
| Standard Dose | 500-1000mg daily (standardized extract) or 300mg of high-potency extract | 200-400mg daily (standardized to 2% eurycomanone or 22-40% bioactive content) |
| Timing | Morning and/or evening with meals. Tulsi tea form is also traditional. | Morning with or without food. Can split AM/PM. |
| Cycle Duration | Cycle 8-12 weeks on, 2-4 weeks off, or ongoing at lower doses | Cycle 8 weeks on, 2 weeks off (or 5 days on, 2 off) |
| Evidence Level | moderate_human | moderate_human |
Holy Basil (Ocimum tenuiflorum) contains eugenol, rosmarinic acid, ursolic acid, and ocimumosides. Eugenol inhibits COX-2 and 5-LOX, providing anti-inflammatory effects. Ursolic acid activates AMPK and inhibits NF-kB. Ocimumosides (A and B) exhibit anti-stress activity by normalizing corticotropin-releasing hormone (CRH) and cortisol levels. Holy Basil also inhibits cortisol synthesis at the adrenal level, modulates GABAergic and serotonergic neurotransmission, has adaptogenic effects via normalization of hypothalamic-pituitary-adrenal axis, and exhibits hypoglycemic action via enhanced insulin secretion and peripheral glucose uptake.
500-1000mg daily (standardized extract) or 300mg of high-potency extract
Morning and/or evening with meals. Tulsi tea form is also traditional.
Cycle 8-12 weeks on, 2-4 weeks off, or ongoing at lower doses
Tongkat Ali contains quassinoids (eurycomanone, eurycomanol) and bioactive peptides (eurypeptides). Primary mechanisms: reduces SHBG binding, freeing testosterone; inhibits aromatase (CYP19A1), reducing estrogen conversion; modulates the HPA axis reducing cortisol; stimulates Leydig cell steroidogenesis via cAMP pathway activation; and may inhibit phosphodiesterase (PDE) enzymes. The net effect is increased free testosterone, improved testosterone:cortisol ratio, and enhanced libido via dopaminergic and NO-mediated pathways in erectile tissue.
200-400mg daily (standardized to 2% eurycomanone or 22-40% bioactive content)
Morning with or without food. Can split AM/PM.
Cycle 8 weeks on, 2 weeks off (or 5 days on, 2 off)
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