Zamorak brew(3)

Zamorak Brew(3) is a members-only item on the OSRS Grand Exchange in the potions category.

In-game examine text: "3 doses of Zamorak brew."

It has a Grand Exchange buy limit of 2,000 every four hours, a high alchemy value of 105 gp, and item ID 189.

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Zamorak Brew(3) shows an active flip setup with a margin of +231 gp and 33,159 trades over the last 24 hours.

At the buy limit of 2,000 every four hours, max profit per cycle is about 462.0k gp — high margin with healthy liquidity.