There is strong evidence that electronic cigarettes are much safer than tobacco cigarettes. These products contain no tobacco and do not involve combustion. Multiple studies have confirmed that there are only a few chemicals present beyond the nicotine, and so far, only trace or low levels of potentially concerning constituents have been detected - levels which are much lower than in real cigarettes. Users of these products generally report an immediate and dramatic reduction in respiratory symptoms. Moreover, there is strong evidence that electronic cigarettes can be effective in smoking cessation and that they may actually be more effective than traditional nicotine replacement products such as nicotine patches, gum, or lozenges. Even when not effective in promoting complete smoking cessation, these products generally help smokers cut down substantially on the amount they smoke, thus sharply curtailing tobacco cigarette sales.

Are they regulated

The answer:

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