how do I use it?

Wet your face and then lather the bar with water well. You should get a clear consistency of white foam.

apply on your face like you would with your normal facial wash and very importantly, leave it on for a minimum of 3 minutes. You can of course leave it on for more.

Cut down on your other facial products (I know you need to finish your current stash of facial products because I was in the same situation.) because the bar will have to start from point zero each time and it will be wasting the effort and you will not be able to see the desired results as quickly as you want them.