Tongkat Ali, also known as (Eurycoma longifolia or Long Jack)

Is a herb from Southeast Asian and has been used for many years. It contains several potentially beneficial compounds.

Increases Testosterone:

A 1-month study in 76 men with low Testosterone found that taking 200 mg of Tongkat Ali extract per day significantly increased levels of this hormone to normal values in over 90% of participants (11Trusted Source).

Reduces stress and anxiety:

A 1-month study in 63 people with moderate stress found that taking Tongkat Ali extract per day reduced levels of the stress hormone cortisol in saliva by 16%, compared to the other group (2Trusted Source).

Reduce fatigue and improve body composition:

This is because it contains compounds called quassinoids, including eurycomaoside, eurycolactone, and eurycomanone, which may help your body use energy more efficiently, reduce fatigue, and improve endurance (3Trusted Source).

Increase muscle mass:

What’s more, a 5-week study in active adults discovered that supplementing with Tongkat Ali extract daily significantly increased muscular strength, compared to a placebo group (22Trusted Source).