{"id":30347,"date":"2025-07-02T09:24:33","date_gmt":"2025-07-02T15:24:33","guid":{"rendered":"https:\/\/www.uchealth.org\/today\/?p=30347"},"modified":"2025-10-16T14:09:41","modified_gmt":"2025-10-16T20:09:41","slug":"why-soap-and-water-work-better-than-hand-sanitizer-to-remove-remove-viruses-and-germs","status":"publish","type":"post","link":"https:\/\/www.uchealth.org\/today\/why-soap-and-water-work-better-than-hand-sanitizer-to-remove-remove-viruses-and-germs\/","title":{"rendered":"Why soap and water work better than hand sanitizer to remove viruses and germs"},"content":{"rendered":"<div style=\"margin-top: 0px; margin-bottom: 0px;\" class=\"sharethis-inline-share-buttons\" ><\/div><figure id=\"attachment_30351\" aria-describedby=\"caption-attachment-30351\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-30351 size-full\" src=\"https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104144\/soap-and-lather-tiny.webp\" alt=\"Soap and water are more effective than hand sanitizer at removing viruses. Soap disrupts sticky bonds, and viruses slide right off. Hand sanitizer can't do that. Photo: Getty Images.\" width=\"600\" height=\"400\" srcset=\"https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104144\/soap-and-lather-tiny.webp 600w, https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104144\/soap-and-lather-tiny-300x200.webp 300w, https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104144\/soap-and-lather-tiny-150x100.webp 150w, https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104144\/soap-and-lather-tiny-200x133.webp 200w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-30351\" class=\"wp-caption-text\">Soap and water are more effective than hand sanitizer at removing viruses. Soap disrupts sticky bonds, and viruses slide right off. Hand sanitizer can&#8217;t do that. Photo: Getty Images.<\/figcaption><\/figure>\n<p>Do you want to stay healthy and avoid getting viral infections or stomach bugs from foodborne illnesses?<\/p>\n<p>Washing your hands well is the key to avoiding getting sick, and you might be wondering exactly how to wash your hands most effectively. Does good, old-fashioned soap or hand sanitizer work better?<\/p>\n<p>The great news is that regular, inexpensive soap works better than hand sanitizer to kill germs and viruses.<\/p>\n<p>How could this possibly be true?<\/p>\n<p>Well, it\u2019s all about chemistry, says <a href=\"https:\/\/www.uchealth.org\/provider\/daniel-pastula-md-mhs-neurology\/\">Dr. Daniel Pastula<\/a>, a <a href=\"https:\/\/www.uchealth.org\">UCHealth<\/a> neuro-infectious disease expert and neurohospitalist at <a style=\"background-color: #ffffff;\" href=\"https:\/\/www.uchealth.org\/locations\/uchealth-university-of-colorado-hospital-uch\/\">UCHealth University of Colorado Hospital.<\/a><\/p>\n<h2><strong>Why does soap work better than hand sanitizer for hand washing?<\/strong><\/h2>\n<p>Pastula said soap is a simple but highly effective tool.<\/p>\n<p>Millennia ago, humans discovered that they could combine animal fat with alkaline salts or ash to create what we now call soap.<\/p>\n<p>\u201cAnd this combination did a remarkable job at cleaning,\u201d said Pastula, who is also an <a id=\"\" href=\"http:\/\/www.ucdenver.edu\/academics\/colleges\/medicalschool\/departments\/neurology\/Faculty\/Pages\/Pastula.aspx\" target=\"_blank\" rel=\"noopener\">associate professor of neurology, infectious diseases and epidemiology<\/a> for the <a href=\"https:\/\/medschool.cuanschutz.edu\/\">University of Colorado School of Medicine<\/a> and the <a style=\"background-color: #ffffff;\" href=\"http:\/\/www.ucdenver.edu\/academics\/colleges\/PublicHealth\/Pages\/default.aspx\" target=\"_blank\" rel=\"noopener noreferrer\">Colorado School of Public Health<\/a>.<\/p>\n<p>In more recent years, humans discovered that alcohol can kill bacteria and viruses like the one that sparked the COVID-19 pandemic in 2020. Hand sanitizer is made up mostly of alcohol, so sanitizers have become a popular choice as people pay more attention to washing their hands and preventing the spread of viruses.<\/p>\n<h2><strong>Does hand sanitizer kill viruses? Why does soap work better?<\/strong><\/h2>\n<p>While hand sanitizer can neutralize viruses, it doesn\u2019t have one little-known superpower that soap has.<\/p>\n<p>\u201cSoap disrupts the sticky bond between pathogens and your skin, allowing the pathogens to slide right off. Not only are you neutralizing the virus with the soap, but you\u2019re also physically knocking it off your hands,\u201d Pastula said. \u201cHand sanitizer doesn\u2019t do all of that.\u201d<\/p>\n<p>So, public health experts truly mean it when they tell you that washing your hands frequently for at least 20 seconds with soap and water will help prevent the spread of the coronavirus.<\/p>\n<p>Many health care providers count on hand sanitizer and use it multiple times a day when they are seeing patients. They sanitize before seeing a patient. And they sanitize afterwards. They sanitize before seeing the next patient, and so on and so on. But when Pastula has the opportunity, he heads to a sink.<\/p>\n<p>\u201cIt\u2019s just better,\u201d Pastula said. \u201cIf I have the option, I use soap and water. I use hand sanitizer as a backup.\u201d<\/p>\n<h2><strong>Does the type of soap you use matter?<\/strong><\/h2>\n<p>As for the type of soap, it doesn\u2019t matter.<\/p>\n<p>\u201cIt can be fancy mall soap. It can be a 50-cent generic unscented soap. It doesn\u2019t need to be antibacterial soap. All soaps work the same,\u201d Pastula said. \u201cAnd soap doesn\u2019t only work for viruses. It works on many other viruses and bacteria.&#8221;<\/p>\n<p>Pastula said the use of soap dates back to ancient times.<\/p>\n<p>\u201cThe earliest recorded evidence of soap use was before 2000 B.C. in the Middle East. The ancient Egyptians described combining various plant fats with alkaline salts to create a cleaning substance they bathed in around 1500 B.C.,\u201d Pastula said.<\/p>\n<h2><strong>Does it matter how long I wash my hands?<\/strong><\/h2>\n<p>The chemistry of soap is fascinating as well, Pastula said.<\/p>\n<p>\u201cChemistry for the win here. Soap has two chemical parts to it: A head that is hydrophilic, meaning it likes mixing with water. And a tail that is hydrophobic, meaning it likes mixing with oils and fats. Typically, water and fats\/oils don\u2019t like to mix. But when you add soap, they suddenly do,\u201d Pastula said.<\/p>\n<p>Just think about when you\u2019re mixing a vinegar and oil dressing. You have to keep shaking the dressing because the oil and vinegar keep stubbornly separating.<\/p>\n<p>\u201cSoap can bridge the chemical differences between water and fat. That\u2019s why you need soap to clean a greasy frying pan,\u201d Pastula said.<\/p>\n<p>And that\u2019s what makes it so effective.<\/p>\n<p>\u201cGuess what coats viruses like the one that causes COVID-19? It\u2019s a layer of fat,\u201d Pastula said. \u201cSoap molecules can pry themselves into the fatty layer of this particular virus and break it up, thus inactivating the virus.\u201d<\/p>\n<p>Breaking up the fatty envelope that encases the virus particles can take a little time, so it&#8217;s important to spend at least 20 seconds lathering up and washing your hands.<\/p>\n<h2><strong>What about the temperature of the water? Does that matter when you&#8217;re washing your hands?<\/strong><\/h2>\n<p>When you wash your hands, Pastula said you don\u2019t worry too much about the temperature of the water (as long as it\u2019s clean) or the exact type of soap. Just pay attention to lathering and washing long enough.<\/p>\n<figure id=\"attachment_30350\" aria-describedby=\"caption-attachment-30350\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-30350 size-full\" src=\"https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104138\/colorful-soap-tiny.webp\" alt=\"Colorful soaps. Any type of soap will work well against the viruses and germs as long as you practice good washing techniques.\" width=\"600\" height=\"488\" srcset=\"https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104138\/colorful-soap-tiny.webp 600w, https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104138\/colorful-soap-tiny-300x244.webp 300w, https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104138\/colorful-soap-tiny-150x122.webp 150w, https:\/\/uchealth-wp-uploads.s3.amazonaws.com\/wp-content\/uploads\/sites\/6\/2020\/03\/29104138\/colorful-soap-tiny-200x163.webp 200w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-30350\" class=\"wp-caption-text\">Any soap will work to remove viruses and germs from your hands, as long as you spend at least 20 seconds lathering up, rubbing all over your hands, before rinsing with water. Photo: Getty Images.<\/figcaption><\/figure>\n<p>The water doesn\u2019t have to be a particular temperature.<\/p>\n<p>\u201cUse whatever temperature is comfortable for you. The big thing is that you get all the surfaces on your hands lathered up, then rinse with water. That whole process takes about 20 seconds,\u201d Pastula said.<\/p>\n<p>With our dry climate in Colorado, plenty of people are noticing that their hands are dry and chapped from so much hand washing. Pastula said it\u2019s fine to use moisturizer after you wash your hands. (You wouldn\u2019t want to moisturize dirty hands, so wash them before you use moisturizer.)<\/p>\n<p>With respect to hand sanitizer, Pastula said it&#8217;s a great option when you&#8217;re on the go and can&#8217;t access a sink.<\/p>\n<p>But when you&#8217;re near a bathroom or kitchen sink, make use of the simplest, cheapest way to wash your hands and avoid getting sick.<\/p>\n<p>Said Pastula: \u201cSoap is simple, cheap, and incredibly effective.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Do you want to stay healthy and avoid getting viral infections or stomach bugs from foodborne illnesses? Washing your hands well is the key to avoiding getting sick, and you might be wondering exactly how to wash your hands most effectively. Does good, old-fashioned soap or hand sanitizer work better? The great news is that [&hellip;]<\/p>\n","protected":false},"author":2123,"featured_media":86329,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"","_relevanssi_noindex_reason":"","footnotes":""},"categories":[6],"tags":[4859,4860,392,162],"class_list":["post-30347","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-healthy-living","tag-coronavirus","tag-covid-19","tag-infection-prevention","tag-infectious-diseases"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Why soap and water beat hand sanitizer against viruses and germs - UCHealth Today<\/title>\n<meta name=\"description\" content=\"Soap and water break down viruses and germs in ways that sanitizers can\u2019t. 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