A Vial is an item used in the herblaw skill to create various potions. Players can fill vials by using them with a water source such as a sink or fountain, receiving a vial of water. Players can then add herbs to create unfinished potions. The best location to fill a vial with water is at the fountain near the west Falador bank.
Vials can be bought from Herblaw shops starting from 2gp each and southern Karamja general stores starting from 3gp each.
Vials already containing water can be bought from Kortan's Adventurers store in East Ardougne for 2 gp. (Only 10 in stock)
Vials can be made at level 33 Crafting by using a Glassblowing pipe on Molten glass.