"Took our Mal-Shi (Maltese/Shih Tzu) puppy (6 months old), Oliver for a visit to family in Alabama. It is rare to see fleas here in Colorado but I decided to treat him before we left to prevent any problems. Read good reviews about Bio Spot so decided to use this since inexpensive and only needed one treatment. Oliver started scratching within days of arriving in AL. We couldn’t find any fleas on him so thought it must be something else. Just got home a couple of days ago and low and behold, we have found some hitchhikers on Oliver. I killed 4 fleas so far that I was able to pick off of him. Called Vet and they advised to bath him with flea shampoo right away and then start on Frontline. My 12 year old cat has never seen a flea in his life and now I am concerned that they will be transferred to him. I am very disappointed in Bio Spot and would not recommend."