Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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9 Best flea treatment for puppies under 12 weeks of 2025
Save up to 12% off
Best Choice1
FrontlineFRONTLINE Plus Flea and Tick Treatment for Small Dogs Upto 5 to 22 lbs. 3 Treatments
11% OffKey specs-
Active Ingredients:fipronil, S-methoprene
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Application Method:topical
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Waterproof:Yes
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Treatment Duration:30 days
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Protection Type:fleas, ticks
9.7Exceptional
Our Rating
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Value for Money2
PetArmorPetArmor Plus for Dogs Flea and Tick Prevention for Dogs, Long-Lasting & Fast-Acting Topical Dog Flea Treatment, 6 Count, small
9.4Excellent
Our Rating
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3
TevraPetTevraPet Activate II Flea and Tick Prevention for Dogs | 4 Count | Small Dogs 4-10 lbs | Topical Drops | 4 Months Flea Treatment
9.2Excellent
Our Rating
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4
PetArmorPetArmor Plus Flea and Tick Prevention for Dogs, Dog Flea and Tick Treatment, 1 Dose, Waterproof Topical, Fast Acting, Small Dogs (5-22 lbs)
Key specs-
Active Ingredients:Fipronil, S-methoprene
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Application Method:Topical
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Waterproof:Yes
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Treatment Duration:Up to 30 days
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Protection Type:Flea & tick
9.1Excellent
Our Rating
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5
HartzHartz UltraGuard Dual Action Flea & Tick Topical Dog Treatment and Flea and Tick Prevention, 6 Months, 5-14 Pound Dogs 6-count(Pack of 1)
9.0Excellent
Our Rating
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6
Beloved PetsFlea and Tick Prevention for Small Dogs & Cats, Rabbits - Natural Flea Treatment & Pest Control - Topical Flea & Mosquito Repellent for Puppy and Kitten - All Pets
8.9Very Good
Our Rating
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7
PetArmorPetArmor CAPACTION (nitenpyram) Oral Flea Treatment for Dogs, Fast Acting Tablets Start Killing Fleas in 30 Minutes, Dogs 2-25 lbs, 6 Doses
8.8Very Good
Our Rating
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8
HartzHartz UltraGuard Pro Flea & Tick Topical Dogs & Puppies Treatment & Prevention, 6 Months, 15-30 lbs
8.7Very Good
Our Rating
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9
PetArmorPetArmor for Dogs, Flea and Tick Treatment for Small Dogs (5-22 Pounds), Includes 3 Month Supply of Topical Flea Treatments
12% Off8.6Very Good
Our Rating
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