I walk a little dog named Blackie and have been doing so for the last 2 years, after losing my own dog. Blackie, now 14, lives outdoors, 24/7 in a fenced yard. He has a house, is fed and watered daily and gets a topical flea medication once a month during the summer which just doesn't give him enough protection. After struggling with sprays for 2 years with poor results, I decided to try GCP. Bingo!!!! It is a winner and offers my little buddy 100% protection from all of the fleas, mosquitoes, ...