Fellstalk potion (unf)

A Fellstalk potion (unf) (more commonly called an Unfinished fellstalk potion) is an unfinished potion made via the Herblore skill. Players make it by using a clean fellstalk on a vial of water.

It is used to make the Prayer renewal potion at level 94 by adding a morchella mushroom, earning 190 experience.

Potions
These costs are calculated based on buying the unfinished potion premade. This allows you to skip putting clean fellstalks in a vial of water. However, this method is more expensive. The extra loss accumulated via this method is per potion, however, the experience per hour is doubled.

Profitability
The profit for making an unfinished fellstalk potion using either a vial of water or filling your own vial is as follows.