Boron vs Tongkat Ali (Eurycoma longifolia)

Mechanism

Boron influences calcium, magnesium, and phosphorus metabolism, likely through effects on cell membrane function and transmembrane signaling. It reduces urinary calcium and magnesium excretion, increases serum 25(OH)D and estradiol levels, reduces SHBG (sex hormone-binding globulin) thereby increasing free testosterone, and inhibits inflammatory markers (CRP, TNF-alpha) via NF-kB modulation. Boron also inhibits serine proteases and may modulate the activity of steroid hormone hydroxylases. It plays a role in bone formation by influencing osteoblast and osteoclast activity.

Standard Dosing

3-6mg daily

Timing

With meals. Often taken with Vitamin D/K stack.

Cycle Duration

ongoing

Side Effects

• Nausea at high doses
• Diarrhea
• Skin rash (rare)
• Generally very well tolerated at standard doses

Contraindications

• Estrogen-sensitive cancers (boron increases estradiol)
• Renal impairment (boron is renally excreted)

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Mechanism

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.

Standard Dosing

200-400mg daily (standardized to 2% eurycomanone or 22-40% bioactive content)

Timing

Morning with or without food. Can split AM/PM.

Cycle Duration

Cycle 8 weeks on, 2 weeks off (or 5 days on, 2 off)

Side Effects

• Insomnia
• Restlessness
• Increased aggression (rare)
• Mild GI discomfort
• Elevated heart rate (rare)

Contraindications

• Hormone-sensitive cancers (prostate, breast)
• Pregnancy/lactation
• Children
• Severe liver disease
• Hormone-sensitive cancers
• Concurrent TRT (redundant mechanism)

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