Say what they do, do what they say.
Have you bought a product at the store that says it kills bed bugs, and you find yourself spraying over and over but don't feel like you're winning the battle? Lesson learned. You are now looking at the only brand you need. As advertised, it kills on contact. Between the products and the helpful advice, don't drive yourself crazy wasting your time with other product sites. You're on the site with all the different products you need.