A disinfectant substance called hand sanitizer is used to either destroy or stop the growth of germs on the hands. Along with other components including moisturisers and scents, it generally contains alcohol, such as ethanol or isopropyl alcohol. When soap and water are not easily available, hand sanitizer offers a convenient and portable solution for hand hygiene. Hand sanitizer is applied to the hands and carefully massaged until dry. It aids in lowering the spread of germs and viruses, such as the flu, the common cold, and other potentially dangerous diseases. To practise proper hand hygiene and stop the transmission of illnesses, frequent use of hand sanitizer is advised.