What is the principle of disposable hand sanitizer
Disinfecting ingredients + volatile solvents are the basic principles of no-wash hand sanitizers
Alcohol and benzalkonium chloride are the disinfecting ingredients in hand sanitizers, and glycerin and lipids are ingredients that can play a role in skin care. Disposable hand sanitizers are required to clean dirt in the absence of water. Among them, alcohol and benzalkonium chloride play a role in disinfection. In order to avoid excessive foam generation, and after using hand sanitizer, it can volatilize automatically without washing with running water. Therefore, alcohol and some volatile surfactants are added to the ingredients to take away dirt through surfactants. And it volatilizes automatically to achieve the cleaning effect.
Can a disposable hand sanitizer wash your hands?
1. To remove microorganisms, dry cleaning is not as good as water washing
The use of alcohol-based hand sanitizers can indeed quickly reduce the number of microorganisms on the hands, but it is not effective for all types of microorganisms.
In contrast, "washing" with soap or ordinary hand sanitizer is more effective than "dry cleaning" to remove or inactivate certain types of microorganisms, such as Cryptosporidium, Norwalk virus and Clostridium.
2. Ingestion causes alcoholism
From 2011 to 2015, the US Poison Control Center received nearly 85,000 calls about children's hand sanitizer. Children in particular may swallow hand sanitizers that are scented, colorful and well packaged. Hand sanitizer should be stored out of the reach of children, and should be used with adult supervision.
3. When the hands are dirty or greasy, the effectiveness of "dry cleaning" will be greatly reduced
Research by Pickering AJ et al. has shown that disposable hand sanitizer has a good effect on some microorganisms when the hands are slightly dirty. However, when the hands are dirty or greasy, such as after handling food, exercising, gardening, going camping, or fishing, the hand sanitizer may not work properly. In this case, it is recommended to wash your hands with water.
4. "Dry cleaning" may not remove harmful chemicals
Research by Gloria D. Coronado and Sarah E. Holte and others have shown that farmers who use hand sanitizer have more pesticides in their urine than farmers who use water washing, which indicates that hand sanitizer may not be able to remove pesticides and other harmful chemicals. Although there are very few related studies, the US Centers for Disease Control and Prevention recommends that after touching harmful chemicals with your hands, such as pesticides and heavy metals, you need to wash your hands with water, soap or ordinary hand sanitizer.
Do you still need to wash your hands with water after using the disposable hand sanitizer?
Wiping hands with a disposable disinfectant can eliminate many germs sticking to the hands, but the disinfectant particles will remain on the hands. When children eat snacks, we cannot guarantee that the disinfectant will not be eaten into the stomach. Therefore, it is recommended that after using hand sanitizer or disinfectant, you should still rinse your hands with water if possible.
All in all, when it comes to daily hand cleaning and care, in family life, try to clean with soap or hand sanitizer and running water as much as possible, and clean it thoroughly at the same time. Disposable hand sanitizer is still recommended to be used as an emergency product. When it is inconvenient outdoors, you can use it occasionally. It is not recommended to use disposable hand sanitizer daily. At the same time, children and those who are prone to allergies should use hand sanitizer with caution.