Hand-washing is a common hygienic practice in many cultures, done before eating a meal or after shaking hands. It helps to rid your hands of germs and bacteria, preventing the spread of illnesses like the common cold. However, for situations when a sink is not readily available, hand sanitizer has become a popular choice. But how does it compare to hand-washing in terms of effectiveness?
Who Invented Hand Sanitizer?
Hand sanitizer, in its most common gel-based formula, is believed to have been invented by Lupe Hernandez, a student nurse from Bakersfield, California. She created it as a convenient alternative to handwashing. However, it was not until 1988 that the company GOJO introduced Purell and refined the formula that is widely used today.
Understanding the Ingredients in Hand Sanitizer
Hand sanitizer is a product commonly used to kill germs and prevent the spread of infections. It typically contains a few key ingredients that work together to effectively sanitize your hands.
The primary component of hand sanitizer is ethyl alcohol or isopropyl alcohol. These alcohols have antimicrobial properties and are effective in eliminating a wide range of germs and bacteria that may be present on your hands.
In addition to alcohol, some hand sanitizers may contain benzalkonium chloride. This compound is another antiseptic that can help kill germs and prevent their growth.
To enhance the effectiveness of hand sanitizers, they may also contain sporicides. These sporicides are capable of killing bacteria spores that may be present on your hands.
To counteract the drying effect of alcohol, hand sanitizers often include gelling agents. These agents help keep your hands moisturized and prevent them from drying out, even with regular use of the sanitizer.
Sometimes, hand sanitizers may have fragrances or colorants added to improve their appeal. However, it is important to note that these additives are not essential for the sanitizing action of the product.
By understanding the ingredients in hand sanitizers, you can make informed choices about the products you use to keep your hands clean and germ-free.