<P> R.J. Reynolds Tobacco Company launched the first menthol filter - tip cigarettes in 1956 under the Salem brand . Less heavily mentholated than Kools, Salems were positioned as an all - purpose cigarette, and captured 0.8% market share within their first year . Other tobacco producers, seeing the success of Salem, soon introduced their own mentholated filter cigarettes: Lorillard with Newport in 1957 and Spring in 1959; Philip Morris with Alpine in 1959; and Brown & Williamson with Belair in 1960 . </P> <P> Menthol cigarettes are constructed similarly to non-mentholated cigarettes, with menthol added at any of several stages during the manufacturing process . Menthol may be derived from distilled corn mint oil, or produced synthetically . While trace amounts of menthol may be added to non-mentholated cigarettes for flavor or other reasons, a menthol cigarette typically has at least 0.3% menthol content by weight . Lower - tar menthol cigarettes may have menthol levels up to 2%, in order to keep menthol delivery constant despite the filtration and ventilation designs used to reduce tar . </P> <P> A recent innovation has been to include a small capsule in or near the filter which can be crushed to release additional menthol or other flavoring solutions . During the smoking of a cigarette the menthol delivery depletes noticeably, but this technology allows the smoker to increase the menthol delivery at a chosen point to sustain or enhance the menthol' feel' . The capsules can contain any flavorings but are primarily menthol . </P> <P> Compared to tobacco blends for non-mentholated cigarettes, a menthol cigarette will tend to have more flue - cured than burley tobacco, and less oriental tobacco . </P>

Where do they put the menthol in cigarettes
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