Yellow Tongkat Ali (Eurycoma longifolia)
Most common, smell of ginseng, taste a little bitter. According to traditional Chinese medical science, black food benefits kidney while yellow food benefits spleen and stomach, hence it brings tonic effects. Yellow Tongkat Ali is cold, suitable for obesity and damp-heat patients.

Black Tongkat Ali (Polyalthia Bullata)
Also known as Wild Black Gorilla or Tongkat Ali Baginda. Production of Black Tongkat Ali is rare while its healing efficacy is much better than Yellow Tongkat Ali, best in enhancing male energy. Black Tongkat Ali smells fishy, but when tastes by bits, it tastes mild, unlike Yellow Tongkat Ali bitterness.

Red Tongkat Ali (Stema Tuberosa)
Best healing efficacy among all types of Tongkat Ali, better enhancement of kidney function compared to Black Tongkat Ali. Bloody red roots when it was just unearthed, but after drying in the sun, it shrinks and turns into light red colour. Red Tongkat Ali smells a little ginseng, tastes sweet, obviously different taste compared to Yellow and Black Tongkat Ali.