75% Medical Alcohol and 75% Sterilizing Alcohol are the same. 75% Medical Alcohol and 75% Sterilizing Alcohol are both essentially 75% alcohol, its composition and use are identical, mainly used for disinfecting the skin or the surface of the object, can play a role in killing germs. Including the new coronavirus, the use of 75% alcohol for disinfection is also effective. If the concentration of alcohol is too low, it may not be effective enough to kill germs, but the higher the concentration of alcohol, the better. For example, too high a concentration of alcohol may make the bacteria surface protein denaturation, the formation of biological film, so that the alcohol can not penetrate into the germs, can not completely kill the germs. Once the conditions are right, the bacteria can be reactivated again. Therefore, in the clinical or daily life, the use of alcohol disinfection is generally appropriate to 75% alcohol.