Hand sanitizer - Wikipedia- gelling agents hand sanitizer ,Hand sanitizer is a liquid, gel, or foam generally used to decrease infectious agents on the hands. In most settings, such as the current COVID-19 pandemic, hand washing with soap and water is generally preferred. Hand sanitizer is less effective at killing certain kinds of germs, such as norovirus and Clostridium difficile and unlike soap and water, it cannot remove harmful chemicals.Common Gelling Agents - University of North Carolina at ...Common Gelling Agents. There are many gelling agents. Some of the common ones are acacia, alginic acid, bentonite, Carbopols® (now known as carbomers), carboxymethyl cellulose, ethylcellulose, gelatin, hydroxyethyl cellulose, hydroxypropyl cellulose, magnesium aluminum silicate (Veegum®), methylcellulose, poloxamers (Pluronics®), polyvinyl alcohol, sodium alginate, tragacanth, and xanthan gum.