Rejuvenation potions are created by adding a bruma herb to a rejuvenation potion (unf), earning Herblore experience appropriate to the player's level.

Each potion holds 4 doses and are used to heal the pyromancers found in the Wintertodt's prison. Using a dose on a pyromancer heals them for 5 Hitpoints and grants the player 30 points towards supply crates when subduing the Wintertodt. A single dose will fully heal any incapacitated pyromancers.