Impure skin is one of the most frequent skin conditions which may have different reasons. Often stress and psychical factors destabilize skin’s natural metabolism. Also hormonal stress such as puberty, menopause
or medicaments changes skin’s metabolism. An increased sebum production combined with keratinization disorders is quite often the consequence. Then there are bacterial infects which often heal slowly. Impurities,
large pores, hyperkeratoses and scars mainly characterize this skin condition.