A Marrentill potion (unf) is an unfinished potion made via the Herblore skill. Players make it by using a marrentill on a vial of water. It is used to create a potion of sealegs during Bone Voyage, along with two vodka.
It can be used to make:
|Potion||Ingredient||Herblore Level||Herblore Experience|
|Antipoison||Unicorn horn dust||5||37.5|