Volcanic Ash & Green Clay Face Scrub. Skin grows old and peels naturally. Left to their own devices dead layers of skin will sit on the surface until they either flake or are brushed away. Beneath dead skin pores build up deposits of sebum, the oil our skin naturally produces. Over time these deposits collect particles of dirt creating blackheads and unhealthy looking skin. Regular exfoliation with a well balanced and complete face scrub like Rock & Roll Scrub will remove this build up of unwanted material, cleaning out dirty pores and revealing the fresh layers of good skin underneath.