Slank: Good question. I myself haven't tried Tongkat Ali, but I've heard mixed reviews about it.
I do know that Yohimbe acts a lot like Viagra, so you may want to try it (be wary of it if you have high blood pressure or heart troubles, though). You might also want to consider other supplements that get the blood moving:
- L Arginine/Pycnogenol
- Horny Goat Weed
- Omega-3's (fatty acids)
- Multi-vitamin