Tongkat Ali
Eurycoma longifolia
A Southeast Asian botanical clinically studied for its effects on free testosterone, cortisol reduction, and male hormonal balance.
Clinically studied at 200mgCenturies of use. A stack of modern trials.
Tongkat Ali is a root extract from the rainforests of Malaysia and Indonesia. It's been used in traditional medicine for centuries, but unlike most traditional remedies, it's also one of the most studied botanicals in men's hormonal health.
Over a dozen human clinical trials have examined its effects on testosterone, cortisol, and stress response. Foundation uses the same 200mg dose studied in those trials.
Most supplements raise testosterone or manage stress. Tongkat Ali does both at the source.
Most men with low testosterone also have elevated cortisol, and the two are directly connected: cortisol suppresses testosterone production at the source. Tongkat Ali supports the release of free testosterone while actively reducing the stress hormone that's suppressing it. That's not a bonus effect. That's the mechanism we built the formula around.
Your 90-day timeline.
Stress response may begin to ease. Some men notice improved sleep quality and reduced afternoon energy crashes during this phase.
Cortisol levels begin to normalize. This is typically when the downstream effect on testosterone starts to become measurable.
Most clinical studies measure outcomes at 8 weeks. Sustained use at consistent doses is where the research shows the strongest results.
The exact dose studied in humans.
Human studies show supplementation at 200mg supports free testosterone in men experiencing age-related or stress-related hormonal decline. Foundation uses the same dose studied in those trials.
One signal in a four-part system.
Ashwagandha Shoden®
Both target cortisol from different pathways. Ashwagandha reduces the stress signal upstream; Tongkat Ali blocks its downstream suppression of testosterone. Combined, the effect is stronger than either alone.
Shilajit
Shilajit supports total testosterone production. Tongkat Ali focuses on freeing bound testosterone. They address different parts of the same problem.
Zinc
Zinc provides the raw material testosterone synthesis requires. Tongkat Ali amplifies the output. One supplies, the other signals.
Foundation puts all four to work.
The same clinically studied doses, in one daily formula. No fluff, no fillers, no proprietary hand-waving.
Get Foundation →