If you wash your hands with Purell, then wash your hands with soap and water 5 minutes afterwards, did you wash off/undo the Purell? Just wondering how long the Purell has to be on your hands to kill the germs. Is it possible to wash it off?
In: Biology
Purell, foam, and regular hand sanitizer are all alchohol based. In most all cases an alchohol of at least 70% is enough to kill “germs” on immidiate contact. Some take a few seconds before they die in resilient cases. However everything should be dead by the time the sanitizer dries. If you are ALSO washing your hands after, you are just wasting time. Washing your hand is always better.
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