I know you asked Beachdoc, but thought I would throw my 2 cents in. From a bactericidal point of view, hydrogen peroxide is not very effective. My people think because bubbles are forming, that it is killing bacteria, the theory behind hydrogen peroxide, is that the release of nascent (free) oxygen (which is bactericidal) will kill organisms in or on the skin. Actually, very little nascent oxygen is produced, what little is produce, quickly dissipates. Where peroxide is used, are with some of the newer peroxide sterilizers, which are used to decontaminate sensitive equipment like microscopes. Hope this helps. By the way in your next post, the use of Benzalkonium Chloride is beneficial in wound care. Obviously Beachdoc may have some different views or additions to my comments. Pete