"My old roommate had two barn cats living in her bedroom. When she left and her room was opened up, an infestation of fleas took over the house, and my two cats were covered in them. I had the house professionally exterminated and the day before gave them both good baths with this stuff. The smaller one didn't have as many on her, so it only took one bath to kill them all. There were a lot more fleas on my larger male cat, especially around his lower belly area, and I had to wash him twice because the first time just didn't cut it (he's also much more aggressive when being washed, so it was hard to get everywhere and have it on for 3 minutes). This stuff did a really nice job killing the fleas, it made their coats very soft and they smelled very nice. I haven't seen another flea since, and I partially attribute that to this shampoo.
This is an excellent product if you can get your cat in a bath."