Thanks for the info. The vet said Vectra 3d was the only puppy safe product that works. A few years ago I stuck my atv in the woods by myself. A lot of digging and sweating ,I was covered in Deep Woods Off,mud,and over 20 ticks. I like to go up there prepared,not to many stores near by. The organic bug spay I use on the kids may help,thanks for the idea.Is the preventics collar puppy safe?