Bought a fixer-upper dirt cheap and discovered an infestation of roaches, no sure what species. Was desperate as they'd multiplied and literally had the run of the house, so, I went online looking, seeking a product, determined to purchase anything and everything until something worked. I didn't have to look hard as I came upon this product. I ordered a couple to tubes at first just to try it. The amount of dead roaches the following morning let me know I was onto something. I ordered an entire case putting the gel onto small square pieces of cardboard placing them under furniture, the stove, dishwasher, washer and dryer. I used the plunger to apply it into the edges along the wall and floor and in the corners of the cabinets. I reapplied the gel once every couple of weeks for about 2 months, then stopped thinking I was never going to get rid of them all. About 2 months after stopping I noticed the roaches were gone, all were gone! I never thought I would find a product that would rid me of my roach infested nightmare. They never returned. I had a half a case left and gave it to others with the same problem and had them coming back to me for more. I cannot say enough good things about this product. I am here today ordering for a patient who has a roach problem and is at her wit's end over it and am paying for it because I know she cannot afford it. That is how much I believe in this product. It works!