What type of application is a hand sanitizer considered?

Hand sanitizer is classified as a topical application because it is designed to be applied to the skin's surface, particularly to the hands, for the purpose of sanitization and hygiene. The primary function of hand sanitizer is to reduce the number of pathogens on the skin.

Unlike a food additive, which is incorporated into food to enhance its qualities, or a surface cleaner, which is intended for use on surfaces to clean or disinfect, hand sanitizers are specifically formulated for use on human skin. Additionally, hand sanitizers are not an ingestion aid; they are not intended for consumption or to assist with any aspect of eating or drinking, as they can contain ingredients that are harmful if ingested.

Understanding the classification of hand sanitizers as a topical application is important for proper use, as it emphasizes the necessity of applying it directly to the skin rather than considering it for any other purpose.