How to mix a potion?

Click "Alchemy" in the main menu of the game. You will see your alchemical laboratory.

There are 3 cauldrons - Basic, Advanced, and Master. The Basic Cauldron is available right away, but to unlock the Advanced and Master Cauldrons you need to earn a certain amount of alchemy points first.

Each cauldron can be used to brew different kinds of potions:

The Basic Cauldron can only be used to brew potions from the Basic tab.

The Advanced Cauldron can be used to brew potions from the Advanced and Basic tabs.

The Master Cauldron can be used to brew potions from any tab.

To start brewing click any cauldron or the "Add" button. The Recipe Book will open.

The green border around a component in the Recipe Book means that you have it in your inventory. If you don't have a component, there will be no border. If you open the "Mix" dialog, you may see additional yellow and red borders. The yellow border means that you don't have the potion/charm you need but you have the components to create it. The red border means that you don't have some of the basic ingredients to create the intermediate ingredients.

Each cauldron can be used to brew a pack of potions instead of 1 potion! The size of the pack depends on the type of the cauldron.

You can increase the cauldron capacity with the "Large Cauldrons" skill or with Guild Membership.