Puran bark, also known as Prunus Occidentalis, is a Jamaican herb that is said to have the following health benefits: 
 
Energy: Puron bark tea is a good source of energy and can help with fatigue.
Blood cleanser: Puron bark tea can help cleanse the blood.
Sexual health: In Jamaican folklore, puron bark is said to be a cure for impotence and to increase sexual desire and performance. However, there is no scientific research to support these claims.
Puran bark is often used in tonic drinks. Some say that the energizing sensation from the first cup is good and that they want to save it for special occasions.