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Strips and gels, which contain stronger whitening agents, are applied directly to the teeth for short periods over several days

The continuum-of-addiction: cigarette smoking in relation to price among Americans aged 15-29

Ed Rosenthal

Copenhagen pouches are a convenient and mess-free way of enjoying smokeless tobacco, making them an ideal choice for users who value ease of use and discretion

European-style (dry) snuff A style of dry snuff intended, almost exclusively, to be shallowly "sniffed" or "snuffed" into the nose, where nicotine is absorbed through the mucous membranes in the nostrils

Glycol is used because it has a sweet, palatable taste and produces vapors when heated