Ko te Tongkat Ali Extract he paura tangohanga tipu i tangohia mai i te Polygonatum (ingoa pūtaiao: Codonopsis pilosula), he tipu o te whanau Rehmannia. Ko ona waahanga matua ko te polysaccharides, flavonoids, saponins, sterols, esters, me etahi atu. Ko enei kai e whakaponohia ana he momo tiaki hauora me nga hua rongoa, tae atu ki te anti-oxidation, te ture aukati, te anti-ngenge, te anti-tumor, etc.