How Does Hand Sanitizer Work on Our Hands? Hand sanitizer or handrub is a liquid, gel or foam generally. When used on hands it starts to kill the vast majority of viruses/bacteria/microorganisms on the hands. Although the effectiveness of hand sanitizer is variable, it is employed as a simple means of infection control in a wide variety of settings.
From day-care centres and schools to hospitals and health care clinics and from supermarkets to cruise ships. Alcohol-based hand sanitizer that is at least 60% (v/v) alcohol in water (specifically, ethanol or isopropyl alcohol/isopropanol (rubbing alcohol)) is recommended by the United States Centers for Disease Control and Prevention (CDC), but only if soap and water are not available.
The CDC recommends the following steps when using an alcohol-based hand sanitizer:
*Apply product to the palm of one hand.
*Rub hands together.
*Rub the product over all surfaces of hands and fingers until hands are dry.
*Do not go near flame or gas burner or any burning object during application of hand sanitizer.
In most healthcare settings, alcohol-based hand sanitizers are preferable to hand washing with soap and water, because it may be better tolerated and is more effective at reducing bacteria. Hand washing with soap and water, however, should be carried out if contamination can be seen, or following the use of the toilet.
Alcohol-based versions typically contain some combination of isopropyl alcohol, ethanol (ethyl alcohol), or n-propanol, with versions containing 60% to 95% alcohol the most effective. Care should be taken as they are flammable. Alcohol-based hand sanitizer works against a wide variety of microorganisms but not spores.
Compounds such as glycerol may be added to prevent drying of the skin. Some versions contain fragrances; however, these are discouraged due to the risk of allergic reactions. Non-alcohol based versions typically contain benzalkonium chloride or triclosan; but are less effective than alcohol-based ones.
Alcohol has been used as an antiseptic at least as early as 1363 with evidence to support its use becoming available in the late 1800’s. Alcohol-based hand sanitizer has been commonly used in Europe since at least the 1980’s. The alcohol-based version is on the World Health Organization’s List of Essential Medicines, the safest and most effective medicines needed in a health system.
In conclusion, now we do know How Does Hand Sanitizer Work on Our Hands!
Content for this question contributed by Sam Parker, resident of Hillsborough County, Florida, USA
