Ancient brew(3)

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

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

It has a Grand Exchange buy limit of 2,000 every four hours, a high alchemy value of 105 gp, and item ID 26342.

View on OSRS Wiki

Ancient Brew(3) shows an active flip setup with a margin of +177 gp and 48,134 trades over the last 24 hours.

At the buy limit of 2,000 every four hours, max profit per cycle is about 354.0k gp — high margin with healthy liquidity.