On average, how much more bacteria do fake nails produce?
 Natural nails produced an average of 4.3 bacterial colonies. In contrast, scrapings from nail polish or artificial nails produced an average of 17.5 colonies! Leah and Ashleigh had their answer to the question. Only natural nails are allowed because polished or artificial nails tend to harbor far more bacteria. The germs could be dangerous to sick patients.  