Alchemy

You can start doing Alchemy at level 8 Construction, when you've built a kitchen in your house. You make potions by adding a number of raw materials into the pot and no recipes are given.

So far we only know these recipes but as these take 12 raw materials to make it's safe (but is it secret) to assume that others might follow the same pattern.

Once you reach level 14 Construction, an Alchemy Lab is available to be built. With an Alchemy Lab, you can create even stronger versions of the basic potions, but require 3 times the necessary components.