I posted about mucuna and Zandopa in this thread:

http://neurotalk.psychcentral.com/showthread.php?t=1462

My zandopa arrived from India in 9 days!

In clinical trial, mucuna worked 3 times as well as sinemet (same amount of levodopa in each), so they surmise carbidopa type chemicals must be in the mucuna. Someone on the board said he didn't need carbidopa for the mucuna to work.

I haven't used the zandopa yet.

There are other old threads about mucuna with good info. Worth a search.