Tongkat Ali (Longjack)
Eurycoma longifolia
A Southeast Asian root popular for energy, stress resilience, libido, and testosterone support.
Traditional use (tcm): A Southeast Asian root popular for energy, stress resilience, libido, and testosterone support.
A Southeast Asian root popular for energy, stress resilience, libido, and testosterone support.
Active constituents are under study; evidence ranges from traditional use to preliminary human trials.
- A Southeast Asian root popular for energy, stress resilience, libido, and testosterone support.
Evidence strength: limited human.
- See the evidence level above
- May affect hormones and blood sugar; quality/heavy-metal concerns with cheap products.
- Hormone-sensitive conditions
- Pregnancy
May affect hormones and blood sugar; quality/heavy-metal concerns with cheap products.
May interact with prescription medications — review with a clinician if you take any.
Use caution in pregnancy, breastfeeding, for children, and with chronic disease unless cleared by a clinician.
Choose reputable, tested suppliers; correct identification is essential for wild-harvested plants.