Ingredient Profile · Botanical
Tongkat Ali
Studied for freeing testosterone from SHBG binding.
Mechanism
Tongkat Ali (Eurycoma longifolia) is studied for reducing testosterone's binding affinity to sex hormone-binding globulin (SHBG), leaving more testosterone free and biologically active for energy, strength and drive.
What the evidence shows
One of the better-researched botanicals in men's vitality formulas, with multiple small trials reporting improvements in testosterone-related measures and stress resilience. As with most botanicals, results vary by extract standardization and dose.
Safety notes
Generally well tolerated. Consult a doctor before use if you have a hormone-sensitive condition or take hormone-related medication.