Hi Michaela, I think I may have just been lucky but I recall the time at the US Nationals at Rhode Island where it seemed a lot of people were picking ticks off their dogs. I had bathed my dogs prior to travelling with Kennel Flea and Louse Shampoo and while I always rinse thoroughly some residual effect may have been at play because my friend's nimble fingers (she's a seasoned tick hunter) never found one:-) I have since changed shampoos because it has been some years since my kitties went to heaven and they were my greatest flea hosts. I now use Miracle Coat that has tea tree oil in it and I have used body wash with tea tree oil for myself in blackfly season and have found less trouble with these nasty biting bugs so figured it was acting as a repellent in the dog shampoo too. Worth a try if you have it in England:-)
Rose T.