käsidesin

Käsidesin, also known as hand sanitizer or hand rub, is a liquid, gel, or foam preparation used to disinfect hands. It is an alternative to soap and water when these are not available. Käsidesin typically contains alcohol as its primary active ingredient, usually ethanol or isopropanol, at concentrations between 60% and 95%. The alcohol works by denaturing proteins and disrupting cell membranes of microorganisms, effectively killing them.

The use of käsidesin became widespread, particularly during public health crises like pandemics, due to its effectiveness in reducing the transmission of infectious diseases. It is recommended by health organizations as a way to maintain hand hygiene when handwashing facilities are inaccessible. While effective against many bacteria and viruses, it is less effective against certain types of germs, such as norovirus and Clostridium difficile, and does not remove visible dirt or grease from hands.

Proper application of käsidesin involves dispensing a sufficient amount to cover all surfaces of the hands and rubbing them together until dry. It is important to ensure that the sanitizer does not come into contact with eyes or mucous membranes. While generally safe, some individuals may experience skin dryness or irritation due to the alcohol content. Moisturizers are often added to formulations to mitigate this effect. The availability of käsidesin in various forms, from small portable bottles to larger dispensers, has made it a convenient and accessible tool for personal hygiene.