My top pick is Adams Plus Flea and Tick Shampoo with Precor. It kills fleas, ticks, and lice on contact and provides protection for up to 28 days. Shampoos can be a great first line of defense ...

Best shampoo for puppies over 12 weeks old If your puppy over 12 weeks old needs a flea bath, Sentry Flea and Tick Shampoo with Oatmeal may be a good choice. Its active ingredients — permethrin ...