Question: how long does it take to get rid of fleas on a kitten?
Answer: For kittens with biting (adult) fleas, you will likely want a product that works quickly to kill these parasites. Capstar is a popular flea product that works within 6 hours to kill 90% of fleas, and it can be used on kittens as young as 4 weeks of age and older, provided the kitten weighs at least 2 pounds.