cosmogen, has designed a specific brush for cleansing and purifying care whose uniqueness lies in its natural fibre that is treated with activated charcoal long known for its antibacterial properties.its strength is the combination of antibacterial power with its power of penetration into the pores to deep clean them, even in hard to reach places. the sweetness of cosmogen&39s antibacterial charcoal brush makes it an instrument of care that is particularly recommended for sensitive skin.