Weapon poison(++)

Weapon Poison(++) is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "A vial of super strong weapon poison, for spears and daggers."

It has a Grand Exchange buy limit of 2,000 every four hours, a high alchemy value of 259 gp, and item ID 5940.

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Weapon Poison(++) shows an active flip setup with a margin of +298 gp and 30,932 trades over the last 24 hours.

At the buy limit of 2,000 every four hours, max profit per cycle is about 596.0k gp — high margin with healthy liquidity.