The Nitrosomonas in the AO+ Restorative Mist work by consuming the irritating compounds produced by your skin (like ammonia and urea in sweat), and in turn producing beneficial byproducts. Specifically, Nitrosomonas produce Nitrite and Nitric Oxide. Nitrite tames the bad bacteria and promotes the good bacteria on the skin. Nitric Oxide is a key antioxidant and anti-inflammatory. These two byproducts together do a great deal to help promote healthy skin overall.