Some hand sanitizer does dry out your hands
yes because of the alcohol used in the hand sanitizer
no
The proper way to apply hand sanitizer is to first make sure your hands are visibly clean. Then, apply a small amount of sanitizer, about the size of a coin, to the palm of one hand. Rub your hands together, making sure to cover all surfaces, including the back of your hands, between your fingers, and under your nails, until the sanitizer is dry.
washing your hands of course is the most affective way of killing germs. but hand sanitizer is best when you don't have access to running water or soap. Hand sanitizer kills more germs but drys your hands out with overuse. After the years go by you will find your hands getting itchy all the time. It is best to only use hand sanitizer when touching things as elevator buttons, public door handles & washrooms... etc.
well you use your hands and wash them with them.
get soap and water then wash in your hands.
The CDC reports that soap and water does a better job at removing germs, but a hand sanitizer with at least 60% alcohol makes sense to use if soap and water are not available. If your hands are visibly dirty or greasy,
studies have shown hand sanitizer DOES NOT replace hand washing and in some cases may cause cancer.
Well I don't know the exact limit, but I do know that hand sanitizer dries out your hands so just don't overdue it.
soap and water. sometimes isopropyl alcohol hand sanitizer
When your hands were contaminated during the work or after public transport.