|Release date||24 July 2006 (Update)|
|Quest item?||Lunar Diplomacy|
|High Alch||0 coins|
|Low Alch||0 coins|
|Store price||Not sold|
|A vessel with water, Guam and Marrentill inside.|
The guam-marr vial is made by using a marrentill on a guam vial or by using a guam on a marr vial. Producing the guam-marr vial from the empty vial yields a total of 168 Herblore experience. It is required to produce the waking sleep potion, which is required for the Lunar Diplomacy quest.
The next step is to use a ground tooth on the guam-marr vial.