Image by Elena Mozhvilo



Hypochlorous (HOCl) is a free chlorine molecule with the chemical structure HOCl. It is the dominate free chlorine species in chlorine solutions that have a slightly acidic to neutral pH (6.5 – 7.2). HOCl is a much more powerful oxidant than sodium hypochlorite (or chlorine bleach). 

HOCl is produced naturally by the white blood cells of all mammals. It is used by white blood cells to kill invading microbial pathogens. Following research, HOCl was proven to be effective against many viruses and bacteria, including Salmonella and E. coli. It has also demonstrated effectiveness at removing and preventing the formation of biofilm.

HOCl is non-toxic and non-hazardous. Unlike most chemical sanitizers, HOCl is non-irritant to the eyes, skin, and respiratory tract. Even if it were ingested by accident, it causes no harm.