A Tarromin potion (unf) is an unfinished potion made via the Herblore skill. Players make it by using a tarromin on a vial of water.

It can be used to make:

Potion Ingredient Herblore Level Herblore Experience
Strength potion Limpwurt root 12 50
Serum 207 Ashes 15 50
Shrink-me-quick Shrunk ogleroot 52 6