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Facts About Hand Sanitizers

author image Elle Paula
Elle Paula has a Bachelor of Science in nutrition from Framingham State College and a certificate in holistic nutrition from the American College of Healthcare Sciences. She is also a licensed aesthetician with advanced training in skincare and makeup. She plans to continue on with her education, complete a master's degree program in nutrition and, ultimately, become a registered dietitian.
Facts About Hand Sanitizers
A hand sanitizer dispenser on a wooden counter. Photo Credit yipengge/iStock/Getty Images

When you want to show someone affection, you may reach out and touch them -- hold their hand, brush their cheek. The point is to show you care, but you may also be unintentionally spreading disease-causing germs. Keeping your hands clean is one of the most effective ways to prevent the spread of germs and disease, according to the Centers for Disease Control and Prevention. Since soap and water is not always readily available, hand sanitizer was created in 1966 to serve as a secondary method of hand washing.

Lets See What You're Made Of

In order to be effective, hand sanitizer must contain at least 60 percent alcohol; most hand sanitizers contain 60 to 65 percent, according to the Maryland Poison Center. The alcohol in hand sanitizers is in the form of either ethyl alcohol, also known as ethanol, or isopropyl alcohol, also known as rubbing alcohol. Hand sanitizers also often contain humectants, like glycerin, which help prevent skin dryness, and emollients or moisturizers, like aloe vera, which replace some of the water that is stripped by the alcohol. Avoid hand sanitizers that contain any harsh chemicals, like bleach.

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Debunking the Myth

You may think hand sanitizer serves as a secondary method of hand washing when soap and water is not available, but according to Johns Hopkins Medicine, hand sanitizer may actually be more effective at ridding your hands of microbes. Hand sanitizer kills a variety of pathogens that regular soap may leave behind. These pathogens include fungi, the Influenza virus, HIV, the Hepatitis-B virus and drug-resistant bacteria, such as MRSA and VRE. Hand sanitizers do not get rid of all germs, however, and they are not effective if hands are visibly soiled. If you can actually see dirt or oil on the surface of your hands, you must wash your hands with soap and water.

The Right Time

Hand sanitizers are appropriate for most situations where hand washing is required or recommended. You can use hand sanitizer before preparing food, eating, and taking out or inserting contact lenses. Hand sanitizers also effectively clean the hands after using the toilet, touching animals, preparing food, blowing your nose, coughing into your hand or handling garbage. Healthcare workers can use hand sanitizer prior to treating wounds, administering medication or inserting IVs.

Correct Use

For hand sanitizer to be effective, you must use it correctly. The Connecticut Department of Public Health recommends applying the hand sanitizer directly into a dry palm, making sure you use enough to cover the entire surface of your hand. Once you’ve applied the hand sanitizer, rub your hands together until the sanitizer has been absorbed and the entire surface of your hand is dry. Don't rinse the hand sanitizer off; instead, allow it to dry, at which time the alcohol will evaporate on its own. Although small amounts of hand sanitizer will not cause harm if ingested, it is best to avoid contact with your mouth or eyes until after the hand sanitizer has evaporated.

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