I tried this last year on my 3 dogs - 2 Shiloh Shepherds and 1 Pit. Not a flee or tick all year, so of course, I bought it again year and so far, so good. Plan on using this non-chemical alternative from here on out.
I got the tag put it on my Chi I have't seen a flea or tick on her no more scratching. It works I will be telling everyone I know of this tag. will get another one for my other chi. I am very pleased with it. No more chemical or drops or pills. Thank god for this product.