Tongkat ali literally means " Ali's walking stick," which refers to its aphrodisiac effects. Some people say that the "stick" refers to the plant's long, twisted roots that some groups harvest for their medicinal value. Some research indicates that tongkat ali may enhance male fertility and virility.

a herb that has been a traditional remedy in China for centuries. It's used for low libido, fatigue pain, and other conditions.

an amino acid naturally found in red meat, poultry fish, and dairy. It is necessary for making proteins and is commonly used for circulation. L-arginine is converted in the body into a chemical called nitric oxide. Nitric oxide causes blood vessels to open wider for improved blood flow throughout the body giving most men a firmer wood.