As a nurse I am familar with many alcohol hand gels. They are used to effectively kill the germs on your hands or other areas if applied there. I started purchasing this brand when my son was born so that when people came to visit they could quickly wash their hands with this before touching or holding my newborn baby. The bottle I have is a 10oz bottle of the "original" with a pump. They have several different kinds some with scent. I love having the pump where as some brands dont offer that. I used it not only for my hands but for my arms and I sometimes clean surfaces with it. It is really good at getting something sticky off of a surface. I really like how using this saves me time from washing my hands when I have a screaming child I need to pick up. The rule of thumb is that if my hands are visibly dirty then they need washing with soap and water however if they aren't then the alcohol gel will suffice. I do not recommend leaving this lying around if there are small children. I also don't recommend using it that often on your kids hands if they have a habit of putting their hands in their mouths. It has recently sent some kids to the hospital from being overdosed on alcohol.