Avenova is the only truly pure HOCl product that manages the overpopulation of bacteria and is free of bleach impurities, mak ... ing it safe and effective for long-term use. Avenova is designed for the removal of foreign material including microorganisms and debris on and around the eyelid margins that may be due to Blepharitis, Meibomian Gland Dysfunction (MGD), and Dry Eye. read more