NUTRIGLOW offers detox skin lightening and moisturization all in one simple face pack. The bamboo charcoal face pack contains activated bamboo charcoal which aims at giving the skin deep cleansing and detoxification as a priority. The activated bamboo charcoal has extremely high adsorption properties. Adsorption is when the charcoal attracts the undesired and harmful substance towards itself and then stores them within ridding the skin of all the toxins. But couldna't simple charcoal do the same. No. It may have the same adsorption properties yet it does not have a surface area that activated bamboo charcoal has. So it does not have the same capacity as activated bamboo charcoal. Leaving the face pack on the skin to semi-dry allows the activated bamboo charcoal to thoroughly work and give the skin intense cleaning.