Fleas and ticks are nasty parasites that can transmit diseases and your pet can pick them up in various places. FRONTLINE Spot On is an easy-to-use flea and tick product from the UK's No.1 flea and tick brand*. Used monthly, it helps keep your cat protected from fleas and ticks, and the diseases they can transmit. HOW IT HELPS YOUR PET Kill fleas on your pet within 24 hours Kill ticks on your pet within 48 hours Kills biting lice Helps protect against flea and tick re-infestation TREATING YOUR PET Apply FRONTLINE Spot On monthly for continuous protection. Prevents re-infestation with fleas for up to 5 weeks Prevents re-infestation with ticks for up to 1 month Cats and kittens must be at least eight weeks old and 1kg It can be used on pregnant and lactating queens