I use both solutions. Honestly, no harm is going to be brought to you by using either of these. Many people use both, and yet no one has experienced any negative side effects other then MAYBE a bad taste, but even that sounds like a long shot to me. Maybe my palate isn't sensitive enough.
Use whichever you find both more affordable and easier to access. Heck, try them both and see which you prefer! For all you know, you'd rather use rum or whiskey.
-Frank