it is less toxic on the liver due to its production process (filtering) and easier for the liver to break down
here is a link to the last OTC supps I took and they are by far the best I have taken - Omega's cs is top-notch (ar-r.com; elitefitness.com) //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif
http://www.agxsports.com/
as for a few beers or vodka and lime you should be ok just not smart to do on a regular basis, just be sure to drink plenty of water the next day