Green Sichuan Peppercorns, similiar to Red Sichuan Peppercorns, gives a tingley kick to your tongue and lips. thus brings the numbing impact on your mouth.  It absolutely adds flavors and sensations to your dishes.  As a special spice in Sichuan cuisine, it is belived to be good to your health.  Same as Red Sichuan Peppercorns, it is also widely used to get rid of the raw flavors of pork, fish, beef and other meat.