Hand sanitizer

Hand sanitizer is a liquid, gel, or foam used to kill viruses, bacteria, and other microorganisms on the hands. It can also come in the form of a cream, spray, or wipe. While hand washing with soap and water is generally preferred, hand sanitizer is a convenient alternative in settings where soap and water are unavailable.

However, it is less effective against certain pathogens like norovirus and Clostridioides difficile and cannot physically remove harmful chemicals.
Improper use, such as wiping off sanitizer before it dries, can also reduce its effectiveness, and some sanitizers with low alcohol concentrations are less effective.
Additionally, frequent use of hand sanitizer may disrupt the skin's microbiome and cause dermatitis.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 4.0