Usually, we are all very familiar with hand sanitizers. We also know that there are many free-rinse hand sanitizers on the market, which are very convenient. Then we need to know whether the free-rinse hand sanitizer contains alcohol? How long should the free-rinse hand sanitizer be used?

Does the free-rinse hand sanitizer contain alcohol?

There is alcohol in the free-rinse hand sanitizer. Regardless of the size of the free-rinse hand sanitizer, the main ingredients it contains are trichlorohydroxydiphenyl ether, ethanol, and skin care agents. Ethanol is alcohol, which is a substance with disinfection and sterilization effects. According to the Centers for Disease Control and Prevention, free-rinse hand sanitizers with alcohol can effectively inactivate viruses, with a killing rate of 99.99%, and the effect lasts for a long time, which can last for 4-5 hours, and up to 6 hours. Hand-free disinfectant has the effect of disinfection and sterilization because it contains alcohol, but it is different from alcohol because the alcohol concentration in hand-free disinfectant is lower than that of pure alcohol, and there are some differences in the ingredients. Generally, the ingredients contained in hand-free disinfectant are mostly ethanol, chlorhexidine acetate, and silver nitrate. The main function of these substances is disinfection and sterilization, and they can inhibit most Gram-positive bacteria, Gram-negative bacteria and Gram-positive bacteria.

How long does it take to wash with hand sanitizer?

When using hand sanitizer, try to keep it on for 20 to 30 seconds. Hands are the parts of the human body that are most in contact with the outside world and are most likely to get dirty, often carrying various germs. Professor Li Cong explained that hand sanitizer does not stay in the hands for a long time. To achieve the disinfection and antibacterial effect in a shorter time, disinfectants with fast sterilization speed, strong disinfection effect, and no irritation to the skin should be added to the hand sanitizer. The simplest water-free hand sanitizer formula on the market is similar to disinfectant wipes. It uses 75% alcohol and 20% glycerin. The alcohol not only washes but also disinfects, and the glycerin moisturizes the skin. After use, the alcohol evaporates by itself, and the glycerin remains on the skin to moisturize the skin. General ethanol-based rinse-free hand sanitizers have a high ethanol content, generally around 75%. Their main function is disinfection, not cleaning, and they cannot effectively remove dirt attached to small gaps in the skin, such as dust, dirt, blood stains, etc.

Do I need to rinse the hand sanitizer with water?

The hand sanitizer does not need to be washed with water. When using the hand sanitizer, just open it, squeeze an appropriate amount in your hands, and then rub your hands slowly to make it evenly spread on the palms and backs of your hands. It can play a good sterilization role. The hand sanitizer will evaporate quickly when rubbed, and there will be no sticky feeling. It can last for 4-5 hours after use and can also moisturize the hands. The hand sanitizer is more convenient to use. During the rubbing process, the ingredients in it will evaporate quickly, so there will be no sticky feeling after use, and naturally it will not make people feel uncomfortable. So if you are afraid of trouble, you can just buy some hand sanitizer and put it at home if you want to disinfect.