Mucuna Pruriens

Mucuna pruriens is an herb that produces dopamine in the brain. The purpose of taking a supplement like this is primarily to treat Parkinson's. Healthy individuals who consume the supplement may experience a boost in mood and focus as dopamine levels rise. The herb is comprised of a number of substances, the main one being L-dopa, which turns into dopamine. Dopamine can lead to increased aggression. This herb is available without a prescription. A number of individuals who have used it said that it worked as a smart drug, or nootropic, increasing mental focus.

Reference

1. http://www.physicianformulas.com/store/Scripts/prodview.asp?idproduct=132&name=Mucuna-Pruriens (Accessed 10/16/08.)