Best Comfortis In May 2025

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In this Best Comfortis product guide, we’ll help you make a more informed decision and select the product with the benefits you need.

To help you in your search, we have completed this list of the Best Comfortis.

Top Rated Best Comfortis Of 2025

Rank	Product Name	Score
1	DiatomaceousEarth DE10, 100% Organic Food Grade Diamateous Earth Powder - Safe For Children Buy Now	9.7 Buy Now
2	Seresto Flea and Tick Collar for Dogs, 8-Month Tick and Flea Control Buy Now	9.5 Buy Now
3	Capstar Fast-Acting Oral Flea Treatment for Small Dogs, 6 Doses, 11 mg Buy Now	9.1 Buy Now
4	Frontline Plus Small Dogs 0-22lbs (Orange) 6 Doses Buy Now	8.8 Buy Now
5	Cheristin for Cats Topical Flea Treatment and Prevention - Long Lasting, Fast Acting Buy Now	8.6 Buy Now
6	CapAction Oral Flea Treatment Cat 6ct Buy Now	8.3 Buy Now
7	CapAction Oral Flea Treatment Small Dog, 6ct Buy Now	8.1 Buy Now
8	Bayer Animal Health K9 Advantix II Flea And Tick Prevention for Dogs, Dog Buy Now	7.8 Buy Now
9	Bayer Animal Health Flea Prevention for Cats Over 9 lbs, 6 Pack, Advantage Buy Now	7.5 Buy Now
10	EcoFlea by ColoradoDog - 110 to 120 Count All Natural Chewable Dog Treats Buy Now	7.2 Buy Now

1. DiatomaceousEarth DE10, 100% Organic Food Grade Diamateous Earth Powder - Safe For Children

• Diatomaceous earth you can trust - our obsession to create the purest food grade diatomaceous earth affects every aspect of our business, from the quality of the deposits we mine from, to the stainless steel equipment that handles the de.
• Nature's most diverse product - diatomaceous earth is an amazing powder that can be used for a wide range of applications from health supplement to pet care. take a look at some of our reviews for a more thorough list of benefits and use cases
• The only official supplement - we are the only producers of food grade diatomaceous earth products that meet all requirements for health supplements in the usa
• Wholly produced in the usa - our entire process from mining to filtering to packaging is all completed in the united states
• 100% organic - all of our products are certified organic by the organic minerals review institute

2. Seresto Flea and Tick Collar for Dogs, 8-Month Tick and Flea Control

• Seresto collar works through contact, so fleas and ticks dont have to bite your dog to die
• Seresto collar for dogs provides 8 months of continuous flea and tick prevention
• Seresto flea treatment for dogs also aids in the treatment and control of sarcoptic mange and kills lice
• Seresto dog collar is vet recommended flea and tick prevention for dogs in a convenient, odorless, non greasy collar, no need for messy monthly treatments

3. Capstar Fast-Acting Oral Flea Treatment for Small Dogs, 6 Doses, 11 mg

• Includes 6 doses for use with dogs weighing 2-25 (11. 4 mg) pounds
• If your pet gets re-infested with fleas, you can safely give another dose as often as once per day
• The convenience of an oral tablet available without a prescription from your vet
• One oral tablet starts killing fleas within 30 minutes of administration
• Tackle flea infestations fast give capstar and watch dead fleas fall off your pet

4. Frontline Plus Small Dogs 0-22lbs (Orange) 6 Doses

• Kills fleas and ticks: frontline flea and tick treatment for dogs kills fleas, flea eggs, lice, and ticks. this flea and tick treatment kills ticks, including those that may transmit lyme disease.
• Customer care: if you are not satisfied with frontline plus for any reason, please contact the boehringer-ingelheim animal health customer care team at: 1-800-660-1842.
• Waterproof flea and tick treatment for dogs: frontline plus for dogs provides waterproof, fast-acting, long-lasting flea and tick treatment and control for your dog. this product is approved for use on dogs 5-22 lbs.
• Lasting flea and tick protection: frontline's long-lasting formula is stored in the oil glands of the pets skin to give non-stop flea and tick protection for a full 30 days. frontline flea and tick treatment for dogs works non-stop for a full 30 days. a 6-dose supply lasts for 6 months.
• Trusted flea and tick protection for dogs: frontline has been trusted by veterinarians for nearly 20 years. made with 2 tough killing ingredients, fipronil and (s)-methoprene one to kill adult fleas and ticks and the second to kill flea eggs and larvae this fast-acting, long-lasting protection provides flea and tick control for dogs and puppies 8 weeks and older.
• Break the flea life cycle with frontline: frontline flea and tick treatment for dogs kills adult fleas plus flea eggs and larvae to stop existing infestations and prevent establishment of new infestations.

5. Cheristin for Cats Topical Flea Treatment and Prevention - Long Lasting, Fast Acting

• Long-lasting treatment protects against fleas through 6 weeks
• One-size-fits-all for all cats and kittens over 1. 8 lbs. and 8 weeks old
• Topical flea treatment and prevention designed just for cats
• Rounded tip applicator for comfortable, easy application
• Starts killing fleas in only 30 minutes and kills 98-100% of fleas in 12 hours in a controlled study

6. CapAction Oral Flea Treatment Cat 6ct

• For oral use
• Country of origin: switzerland
• Begins working within 30 minutes
• Package dimension: 14. 5"l x 9. 75"w x 9. 0"h

7. CapAction Oral Flea Treatment Small Dog, 6ct

• Package dimension: 14. 5"l x 7. 75"w x 7. 0"h
• Country of origin: switzerland
• For oral use
• Begins working within 30 minutes

8. Bayer Animal Health K9 Advantix II Flea And Tick Prevention for Dogs, Dog

• K9 advantix ii for dogs works through contact, so fleas, ticks and mosquitoes dont have to bite your dog to die
• Contains 6 monthly applications of k9 advantix ii dog flea and tick treatment
• Veterinarian recommended bayer k9 advantix ii for dogs also repels biting flies and kills lice
• K9 advantix ii topical tick and flea control for dogs is easy to apply, starts working to kill fleas within 12 hours and keeps working for 30 days

9. Bayer Animal Health Flea Prevention for Cats Over 9 lbs, 6 Pack, Advantage

• Advantage ii is vet recommended, fragrance free and designed specifically to treat and prevent fleas on cats
• This effective flea treatment kills fleas in multiple life stages, eggs, larvae and adults to break the flea life cycle
• Advantage ii works through contact, so fleas dont have to bite your cat to die
• Easy to apply cat flea treatment starts working within 12 hours and protects for up to 30 days
• Contains 6 one month applications of bayer advantage ii topical flea prevention and treatment for large cats 9 pounds and over
• Packaging may vary

10. EcoFlea by ColoradoDog - 110 to 120 Count All Natural Chewable Dog Treats

• Safer: 100% dog-safe dose of garlic & brewer's yeast in each treat naturally repel fleas and ticks
• Natural dog flea treatment - using only natural ingredients to keep ticks and fleas off your dog
• Easier flea medicine for dogs - no messy oils on your dog's fur or expensive chemical treatments
• Better than a flea collar for dogs - a tasty, healthy treat - instead of an extra plastic collar
• Made in the usa in an fda registered facility with all natural ingredients and no fillers