According to literature studies, ethyl alcohol shows optimum efficiency when used in formulations of 70%.
In commercially available hand sanitizers, isopropyl alcohol is often used because it is cheap. Or ethyl alcohol and isopropyl alcohol are used together. Nova Hand contains only ethyl alcohol. The reason we only use ethyl alcohol is that it has more effectiveness and effects than isopropyl alcohol.
* The glycerin in Nova Hand has humidification.