Attack mixes are made by adding roe or caviar to a two-dose attack potion, giving 8 additional Herblore experience. This requires level 4 Herblore. These mixes can only be created after completing the herblore part of Barbarian training with Otto Godblessed.
Attack mixes temporarily raise your Attack level by 12%, rounded off to the closest level. If you add roe to a 2 dose attack potion it will become a 2 dose attack mix which heals 3 hitpoints per dose; adding caviar however will not increase the health gain to 6 hitpoints. When drinking a sip of the potion it says, "You drink the lumpy potion." If the player drinks all doses or empties the potion, it will become a regular empty vial.