I bought a used living room suite at a local store. It had been cleaned and sealed in plastic by the cleaning company. It had bedbug eggs that started hatching soon after we started using them. When they are just hatching they are very very tiny and translucent. Hard to find. I am allergic to BB and knew what it was. Talking with the manufacturer about this we decided that it was the residual effect that we were after. I applied the Protect to the furniture and let it dry overnight before using it again. The bugs have to walk thru it to get to you. I suffered one more bite and that is it.
I have used Knockout and Protect. Both are excellent in their performance.
Great Job on this product!