Doesn't work at all. No guarantee honored here. Cost is pretty high especially since it doesn't work. Waiting like I was told didn't help and the only way to recover what I paid is to return priority mail and get a partial refund per customer service.

Reasonable pricing Reasonable pricing. Good delivery. Contacted to see if the can make a slightly larger size for large dogs. I have two big labradors and could use a Xl for them. Large fits but slips out (big boys have large necks). Otherwise happy with my order and will render when its time.

Didn't work as I expected Soon as I put it on my cat he started running around crying I mean he didn't like it at all I thought that was it working and had the flees going crazy So I didn't worry much so after a few days I noticed he had been scratching it around his neck to the point his fur was gone in that area and it was raw wet skin I had to take him to the vet cost me $100 for the ointment

Dewell flea collars are the best.... I ordered 3 Dewell flea collars to replace the Seresto collars my cats already had on for 8 months. I decided to try them because they had excellent reviews and were made with essential oils and not chemicals like the other ones. One of my cats has very sensitive skin and was continually scratching in spite of the previous collar. I had to use the flea collars because he couldn't tolerate any flea medication applied directly to his skin. I can honestly say his skin is clearing up and he is no longer scratching. Also...the collars smell wonderful!! If they made a fragrance that smelled like that I would buy it! Lol! If you are considering buying the Dewell flea collar I would strongly encourage you to do so. I'm certainly glad I did. From now on it's only Dewell collars for my kitties! And they're less than half the price of Seresto collars!!

I've used this product for 4 years i I've used this product for 4 years i on my little Maltese. I was afraid to use a stronger collar for her little body. We live in a wooded area with lots of ticks and she likes to go out back. Never picked up a tick or a flea