Zamorak potion

The Zamorak potion is a potion that increases Strength by 10 levels, Attack by 5 levels, and doubles your max hit. The boosts will stay for 5 minutes and then drop by 1 level per minute. The Zamorak potion comes in 4 doses. This potion can also be made at 95 Herblore. This potion cannot be used with the Saradomin potion.

Jagex knew such an item would be popular and made its Grand Exchange price 10,000, allowing rich players though were able to buy lots of them. This item is also popular in PvP worlds. People could make money by buying a Zamorak potion for 10k and selling it for 20k. People will pay outrageous prices for this potion.

Because of this potion, people stopped buying strength potions and super strength potions. Thus their prices dropped dramatically. Since it could sometimes take lots of waiting to get the potion, smart people bought strength potions.