The strong ranged potion is a one dose potion only available in the Dungeoneering skill. Using the potion boosts a player's Ranged level by 3.0 + 15% of their level.
It is made by adding Lycopus and Void dust to a Vial of water. This requires level 71 Herblore and grants 160 experience in Herblore. This potion can only be made in dungeons with complexity level ≥5.