Making marrentill potions

⚠ This profit comes from buying, processing, and reselling on the Grand Exchange. It assumes large GE volume and can be inflated or volatile — treat it as a theoretical ceiling.

Marrentill potions are used to create antipoisons. Because these are often used to train Herblore, and adding clean marrentill to a vial of water gives no experience, many players avoid the tedium of making unfinished potions and buy them d…