Unveiling the Reality of Hand Sanitizers: Their Capabilities and Limitations

Hand sanitizers offer quick and effective germ-killing action and are often used to battle diseases. Their widespread use has significantly reduced the spread of pathogens.
Updated: November 23rd, 2023
Mallory Knee

Contributor

Mallory Knee

Hand sanitizer has become an essential tool in the fight against infectious diseases, including COVID-19 and the flu. With the rise of these epidemics, the demand for hand sanitizer has skyrocketed, highlighting its importance in reducing infection risks. However, many misconceptions surround the effectiveness and scope of hand sanitizers. 

It's important to clarify these misunderstandings and discuss hand sanitizers' factual capabilities and limitations, ensuring that people are well-informed about their proper use and actual benefits in preventing the spread of these viruses.

Using Hand Sanitizer Can Prevent the Spread of Germs

Hand sanitizer is a powerful ally in the fight against the spread of germs and diseases. Its alcohol content works by denaturing the proteins in bacteria and viruses, effectively neutralizing their ability to cause infections. To achieve maximum effectiveness, it's crucial to use hand sanitizer properly, ensuring complete coverage of all hand surfaces and allowing them to dry completely.

The use of hand sanitizer significantly reduces the likelihood of transferring infectious agents to other individuals or onto various surfaces, thereby limiting the spread of disease-causing germs. This is particularly vital in environments like the food industry, where the transmission of pathogens through surfaces can have serious health implications. 

Maintaining proper hand hygiene is a critical component of working with food. While hand sanitizer offers an additional layer of protection, it should complement, not replace, regular and thorough hand washing. This dual approach to hand hygiene enhances overall safety and cleanliness, especially in industries where hygiene is paramount.

Hand Sanitizer Isn't a Substitute for Washing Hands

Despite the common perception that hand sanitizer can entirely eliminate germs from unclean hands and render handwashing unnecessary, thorough hand washing remains essential. According to the Centers for Disease Control and Prevention (CDC), frequent hand washing with soap and water for at least 20 seconds is crucial in preventing disease spread. 

This practice not only cleanses your hands of visible dirt and grime but also effectively removes the microorganisms responsible for causing illnesses. While hand sanitizers are a valuable tool for moments when soap and water are not available, they should be viewed as a supplement to, rather than a replacement for, regular hand washing. This combination of hand hygiene methods ensures the most effective defense against the transmission of harmful pathogens.

Hand Sanitizer Dries Out Your Skin

A widely acknowledged downside of frequent hand sanitizer use, especially noticeable during the pandemic, is its propensity to dry out the skin. Regular users of hand sanitizer can readily confirm this effect.

Alcohol, the main active ingredient in hand sanitizers, is known for its drying properties. It strips away the skin's natural moisture, leading to dryness. This effect is intensified due to the high alcohol concentration required to effectively eliminate microbes. 

Many hand sanitizers now include moisturizing agents like aloe vera or glycerin to mitigate this issue. These ingredients help to counteract the drying effects of alcohol, providing a more skin-friendly solution, especially for those needing to use hand sanitizers frequently. Such formulations aim to balance efficacy in germ-killing with the need to preserve the skin's health and comfort.

Hand Sanitizers Cannot Kill All Germs

Hand sanitizers, particularly those with a minimum of 60 percent alcohol content, effectively eliminate various germs. However, it's important to recognize their limitations in completely eradicating all types of germs. 

Certain pathogens, such as norovirus, cryptosporidium, and clostridium difficile, are known for their resilience against the effects of sanitizers. Additionally, hand sanitizers cannot remove harmful chemicals, including pesticides and heavy metals.

Their effectiveness is further compromised when hands are visibly dirty or greasy. In such cases, the physical action of washing with soap and water is more effective in removing germs. Therefore, while hand sanitizers serve as a convenient alternative when soap and water are not readily available, they should not be relied upon as the primary method of hand hygiene. 

The best practice for preventing the spread of germs remains thorough hand washing with soap and water, especially in situations where hands are heavily soiled or exposed to harmful substances. This comprehensive approach ensures both the removal of visible contaminants and the reduction of microbial presence on the hands.

Hand Sanitizers Do Expire

Stumbling upon a forgotten bottle of hand sanitizer in your car, backpack, or purse might seem like a fortunate find, especially when you need a quick hand clean-up. However, it's important to remember that hand sanitizers have an expiration date.

Typically, the shelf life of hand sanitizers is about two to three years from their manufacturing date, which is usually indicated on the packaging. Post-expiration, the alcohol content – the critical germ-killing ingredient in hand sanitizers – may diminish due to evaporation, leading to decreased efficacy.

Understanding the realities of hand sanitizer, including its capabilities and limitations, helps differentiate between myth and fact. This awareness is crucial in setting realistic expectations about its use and knowing why it can't completely replace hand washing. While hand washing remains the most effective method to combat germs, hand sanitizer is a valuable supplementary defense, offering convenience and some level of protection when soap and water are unavailable.

Enhancing Safety in Long-Term Care: Critical Role and Limitations of Hand Sanitizers

Hand sanitizers have become increasingly important in long-term care settings, especially during flu season and in the wake of the COVID-19 pandemic. In these environments, where residents are often vulnerable due to age, underlying health conditions, or both, the role of hand sanitizers in preventing the spread of infectious diseases is crucial. 

Given the close quarters and high level of personal care required in such settings, the risk of transmitting pathogens like viruses and bacteria is significantly heightened. Hand sanitizers, when used correctly and regularly, can effectively reduce this risk by rapidly killing a wide range of germs that might otherwise be spread through direct contact or via surfaces.

However, the reliance on hand sanitizers in long-term care facilities must be balanced with understanding their limitations. Certain germs, such as norovirus and some types of bacteria, can be more resistant to alcohol-based sanitizers. The use of hand sanitizers should be seen as a complement to, rather than a replacement for, thorough handwashing with soap and water, which remains the gold standard for hand hygiene.

Overuse of Hand Sanitizers

Yes, it is possible to overuse hand sanitizers. Overuse, as mentioned, can lead to skin dryness, irritation, and cracking. It can also disrupt the natural balance of bacteria on the skin, making it more susceptible to infection. Additionally, overuse can lead to the development of antibiotic-resistant bacteria.

Here are some tips to avoid overusing hand sanitizer:

  • Use hand sanitizer only when soap and water are not available.
  • Use a small amount of hand sanitizer and rub it into your hands until it is dry.
  • Avoid using hand sanitizer on open cuts or wounds.
  • If you have sensitive skin, choose a hand sanitizer that is alcohol-free or has a lower alcohol content.
  • Moisturize your hands regularly, especially after using hand sanitizer.

Remember, hand sanitizers are a valuable tool in the fight against germs, but it is important to use them wisely and not in replace of washing your hands using soap and water.

Step 1 of 4

Find a Specialist

Get Started Today

Trusted & Verified Specialists

Work with a trusted Long-Term Care Insurance Specialist Today

  • Has substantial experience in Long-Term Care Insurance
  • A strong understanding of underwriting, policy design, and claims experience
  • Represents all or most of all the leading insurance companies

LTC News Trusted & Verified

Compare Insurers

+