Tongkat Ali
Tongkat ali is a flowering plant (Eurycoma longifolia) native to the rainforests of Malaysia, Indonesia, and surrounding Southeast Asian countries. The root extract has a long history in traditional medicine for vitality and energy, and has gained attention in modern research for its effects on hormonal balance, particularly free testosterone levels and cortisol management.
Research Evidence
Improves subjective energy and well-being
ModerateSupports healthy libido and sexual function
ModerateMay reduce cortisol and perceived stress
ModerateMay enhance body composition during resistance training
LimitedIncreases free testosterone by reducing SHBG
ModerateExpert Evidence
20 references from 2 experts
Safety & Cautions
Side Effects
- Restlessness or mild insomnia if taken late in the day
- Irritability at higher doses
- Mild gastrointestinal discomfort
- Increased body temperature or sweating
Tongkat ali is generally well-tolerated at standard doses, with long-term users reporting no significant adverse effects on liver enzymes or other health markers. However, individuals with hormone-sensitive conditions, those on hormone therapy, or pregnant and breastfeeding women should consult a healthcare provider before use.
Pairs Well With