Depending on your goals, there are no reasons this won't work. We chose to add the extra ingredients for a couple reasons. 1. Alcohol is a drying agent (it's why it evaporates so quickly) which can be REALLY hard on the hands. Your hands are good to you and they don't deserve that. 2. In order to kill COVID-19 and other viruses you need to keep the surface wet and working for at least 20 second (think the Happy Birthday song x 2). Again, Alcohol is a drying agent and can't do all the work on its own. You need some thickening agents to keep it moist (I truly didn't think I would ever use that word on a website but here we are) and let it do its job.