This Tea Tree and Charcoal Soap is perfect for combination to oily skin. Charcoal is fantastic for the skin because it binds to dirt and oil and pulls it out of pores, leaving your skin clean and refreshed. Because of its oil absorbing properties, it’s especially fantastic for oily skin. The activated charcoal gives the bars a rich black color and does produce a slightly gray lather but don’t worry it will not stain washcloths. This recipe also uses tea tree essential oil, which has an earthy scent.