Mosquito Protection H2O fends off those pesky bugs using frequencies that mosquitos find annoying! One hour after ingesting, these frequencies will be vibrating at the skin level and will deter mosquitos from landing on you. While the reports suggest this is near 100% effective, you can expect the occasional kamikaze mosquito to irregularly break through. Doses should be repeated every 3-hours that you plan to be exposed to the elements. There are no odors or side effects making this the perfect protection from mosquitos as it creates a vibrating shield from head to toe without any chemicals.