Adams Flea & Tick Shampoo

As a rule, veterinarians and pet experts are suspicious of anti-flea shampoos and collars, saying they're no substitute for internal or topical medications - and might actually make the situation worse. Still, we did find some positive mentions of Adams Flea & Tick Shampoo, which reviewers say does a good job killing fleas, ticks and lice and is also an overall good shampoo that leaves pet's' coat shiny and odor-free. Even the most effective flea shampoo, though, won't prevent a pet from picking up new fleas the very next day -- so if continuing flea infestations are a problem, you should talk with your veterinarian about topical medications such as Advantage Once-a-Month Topical Flea Treatment for Dogs & Puppies (*Est. $50 for four-month supply) or Revolution for Cats (*Est. $40 for three-month supply, depending on cat's weight), or internal medications like Sentinel Flavor Tabs (*Est. $75 for a six-month supply) or Program Once-a-Month Oral Suspension (*Est. $45 for six-pack).

Since most veterinarians and pet experts don't even discuss pet shampoos, we consult All-Pets-Info.com, a pet specialty site with a helpful guide to flea shampoos, and users' comments on both opinion site Epinions.com and pet-supply retailer PetSmart.com.