Perfect juju smithing potion

A Perfect juju smithing potion is a potion made using the Herblore skill. It is made by combining a juju hunter potion (3) with harmony moss, requiring 82 Herblore and giving 93.3 experience. This makes a three dose potion, and it can be decanted into other doses by talking to Bob Barter (herbs). It can also be turned into a six-dose Perfect juju smithing flask by talking to Teplin Macagan with a potion flask.

A dose of the potion is believed to last for one hour. While the potion is in effect, for each bar that is smelted, there is a 10% chance that a corrupted ore will be put in your inventory.