Monthly treatment for fleas / ticks and worms has never sat comfortably with me. Whilst studying to become a practitioner of canine botanical self-healing, I came across Vince and instead of conventional worm preventative began 3 monthly screening tests with my little cavalier. I do the full test, including lung worm each time. For one year she was clear, then we had a low positive result for lung worm. I was worried, slightly reprimanded by my vet who issued me with a three month course of Advocate. I used it once then retested 4 weeks later and Ruby was clear. I have adopted another rescue recently and I will be screening both every other month. I spoke to three vets after Ruby's positive result and I was actually concerned about the advice given on the basis prevention is better than cure. My newly adopted rescue (Daphne) is only two years old, I intend to keep her as close to nature intended as possible. I use an natural essential oil water for flee and tick prevention. Thank you for your products Vince, both my girls are on your Joint Support - Ruby because she is 12 and has spondylitis and arthritis in her hips and knees, and Daphne as a preventative to help keep her strong and hopefully avoid the onset of arthritis. Thank you!