This wasn't posted in the "making it bigger" section because it isn't the primary purpose of taking tongkat ali - it is more like a natural Viagra alternative. Tongkat ali is a root which grows in southern asia which stimulates the leydig cells to produce more of of your own testosterone, it is used by body builders and has a big effect on sexual desire and performance. Tongkat ali / Buying togkat ali / Sites covering tongkat ali Does anyone here take tongkat ali? How much do you take and what strength? What effect does it have on you? Any bad side effects?