Acne usually on the face, chest, back, shoulders which are areas where the sebaceous glands. The sebaceous glands of the skin make up the fats and oils and fats are created is being excreted in the pipeline, which is opening the pores and sebaceous glands are stimulated oils and fats are created much more to accumulate and freezes in the pores. Oils and fats, it activate skin cells to such substances more keratin substance keratin, it will hold firmly to oils and fats. Also known as by a t accumulating hat causes anaerobic conditions in the pores. The bacteria that cause of acne and causes fat degradation and the beginning of pustule.