Sanitizer is a crucial hygiene product designed to effectively kill germs and bacteria on the skin's surface, reducing the risk of infections and illness transmission. Typically available in gel, liquid, or spray form, sanitizers often contain alcohol as the active ingredient, which is highly effective in eliminating a wide range of pathogens. This guide explores the importance of sanitizers in maintaining personal and public hygiene, especially in settings where handwashing facilities are not readily available. Emphasizing the convenience and portability of sanitizers, it provides insights into proper usage techniques and considerations for selecting the right sanitizer based on its alcohol content and formulation. By incorporating sanitizers into daily routines, individuals can contribute to the prevention of infectious diseases and promote overall health and well-being.