2. How do FRONTLINE Top Spot and FRONTLINE Plus spread over a pet's body? How long does this take? FRONTLINE Top Spot and Plus spread over the pet's body by a process called translocation. When applied, these products are gradually dispersed by the pet's natural oils, collecting in the oil glands in the skin. It is then "wicked" onto the hair over the next 30 days. The translocation process can take up to 24 hours to complete.
8. How long after application can my pet be bathed or go swimming?
FRONTLINE Brand Products remain effective for 30 days, even if a pet swims or is bathed. After application, keep the dog or cat from getting wet until the application area appears dry, usually 24 hours. If a FRONTLINE Brand Product is to be applied after a bath, make sure the pet is completely dry before application.