Prayer renewal

Prayer renewal potions are made by players using the Herblore skill. They require a Herblore level of 94 to make. The boost is between 120 to 516 prayer points depending on the player's Prayer level. The formula seems to be (Prayer * 40% + 120)*10 of your prayer.

A Clean fellstalk and some Morchella mushroom are the ingredients required to create the potion. Making this potion will give 190 Herblore experience.