Complex sentence: Nowadays, some cigarette brands use a white mouth piece, especially those which are oriented to a predominantly female target group; it is also used to signify a menthol cigarette in the United Kingdom and a "light" cigarette in the United States.
Split into simpler sentences: Nowadays, some cigarette brands use a white mouthpiece--especially those which are oriented towards a predominantly female target group. White mouthpieces are also used to signify a menthol cigarette in the United Kingdom and a "light" cigarette in the United States.