I’ve used both bravecto in the past and I think most recently mine has been on credelio, which seems to work well and she tolerates it fine. My corgi girl is also a little too furry for the seresto collars to work, and has a lot of skin sensitivity to stuff which makes me hesitant to try them on her. I did find a tick crawling on her last week when it was so warm out, so I guess it’s a good thing that she’s getting the tick stuff year round.