NEY-Borax was terrible. Although it did kill the fleas, it got caught in my loop carpet and I could not get it out. I steam cleaned it 3 times, carpet raked and vacumed countless times. It dried out my skin and caused a weird reaction in my ear. I had to stay with friends because I could not stay at my apartment and eventually had to replace the entire carpet so I could sleep there again. Apparently other people have also had a terrible reaction to Borax. Borax came out, took samples but refused replace my carpet because I did not keep the box.