Wow! The prices are amazing and the products are legit! I am a repeat customer. These pills work great and last for a full month, unlike some of the drop products that seem to start wearing off by week 3. No side effects either. I normally use the Seresto collars, but my boisterous, young dogs are sometimes too rough on them. This is a good product and works perfect for those that can't seem to keep their flea/tick collars intact.