Q: I am looking for an herb, that can cure impotance, can you give me a direction to look for it.
A: In Chinese medicine impotence is viewed as a depletion of the kidney function and kidney tonifying formulas are used for this.
There are several products you can try. One is Vitality
Another popular product is Nan Bao
I suggest you try one or both. Keep in mind that you may need to use these for several months or longer.