Tongkat Ali, Male Libido Tonic, 60 Tablets, Source NaturalsSource Naturals Tongkat Ali LJ100 Male Libido Tonic, Tongkat Ali 80 mg Tongkat Ali, also known as Long Jack, has been shown to support male hormonal balance (including testosterone availability), libido and performance, according to animal studies. Tongkat Ali is a Southeast Asian botantical used traditionally to enhance energy levels, endurance and stamina, and to reduce occasional mental fatigue. Supplement Facts Serving Size: 1 tablet Amount %DV