Dietary Supplement Non GMO Validated Tongkat Ali, also known as long jack, may support male hormonal balance (including testosterone levels), libido and performance, according to preliminary research. It has been traditionally used to enhance energy levels, endurance and stamina, and to reduce occasional mental fatigue. Информация о добавках Serving Size: 1 Tablet Amount Per Serving %Daily Value LJ100® Eurycoma longifolia Root Extract (40% Glycosaponins, 22% Eurypeptides) 80 mg † †Daily Value not established.