Longjack?? also known as Tongkat Ali?? is an herb known for its aphrodisiac effects. Longjack can increase sperm production and may directly act as a pro-erectile agent.</br>Studies show Longjack supplementation supports lean mass?? power output?? and may also improve body composition. Longjack may also support increased testosterone production.</br>Longjack decreases cortisol levels which delays the onset of fatigue at the muscular level.</b