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common cold
'''Hand sanitizer''' is an antiseptic substance designed to kill the [[bacteria]] on one's hands. [[Isopropyl alcohol]] is the most common active ingredient. Hand sanitizer is usually over 60% [[alcohol]], since this is considered the effective threshold;<ref>http://www.nyc.gov/html/doh/flu/downloads/pdf/flu-hand-sanitizer.pdf</ref> 62% seems to be the most common concentration used among companies. There are also non-alcoholic hand sanitizing substances such as [[triclosan]] or [[ benzalkonium chloride]], but such products are less common due to expense and potential health risks of such chemicals.
'''Hand sanitizer''' is an antiseptic substance designed to kill the [[bacteria]] on one's hands. [[Isopropyl alcohol]] is the most common active ingredient. Hand sanitizer is usually over 60% [[alcohol]], since this is considered the effective threshold;<ref>http://www.nyc.gov/html/doh/flu/downloads/pdf/flu-hand-sanitizer.pdf</ref> 62% seems to be the most common concentration used among companies. There are also non-alcoholic hand sanitizing substances such as [[triclosan]] or [[ benzalkonium chloride]], but such products are less common due to expense and potential health risks of such chemicals. Medical researchers concluded that hand sanitizing is more effective against fighting the common cold than hand washing.<ref>
{{cite journal
| title =Research shows hand sanitizers more effective against cold
| journal =University of Virginia Cavalier Daily
| date =March 26, 2010
| url =http://www.cavalierdaily.com/2010/03/26/research-shows-hand-sanitizers-more-effective-against-cold/
| accessdate =2016-02-10 }}
</ref>
==Proper Use==
==Proper Use==