In quarrymill you can get a levequest that you need to trade 5 x High- potion to a guy in the same outpost,For HQ get 30xp and 1kgil +items,levequest in which u have to trade more than 1 item can be repeated within the same levequest up to 3 times so basically,1 levequest,15HQ HI-Potions = 100k 3kg +items. best levequest to level your alchemist.
It's the level 25 alchemy levequest 1/2 offered in quarrymill