What's the difference between vodka and moonshine?
The main difference lies in the technology: vodka is a rectified spirit (pure alcohol diluted with water), while moonshine is a distillate (a distilled product of mash, preserving the flavor of the original).

Why doesn't moonshine have hangover?
The lack of a hangover after drinking moonshine isn't a quirk of an individual, but a scientifically proven fact. Research by the Institute of Theoretical and Experimental Biophysics and the Research Institute of Narcology of the Russian Ministry of Health has shown that ultra-pure ethyl alcohol is more toxic than alcohol with small amounts of impurities.