Guam potion (unf)

Guam Potion (unf) is a members-only item on the OSRS Grand Exchange in the potions category.

In-game examine text: "I need another ingredient to finish this Guam potion."

It has a Grand Exchange buy limit of 10,000 every four hours, a high alchemy value of 1 gp, and item ID 91.

View on OSRS Wiki

Guam Potion (unf) shows an active flip setup with a margin of +56 gp and 189,513 trades over the last 24 hours.

At the buy limit of 10,000 every four hours, max profit per cycle is about 560.0k gp — high margin with healthy liquidity.