Seresto Flea & Tick Collar for Dogs (Large) vs Frontline Plus for Dogs (6-Dose)
Scored head-to-head on every dimension — with a clear verdict and the best price on each.
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Our verdict: it's close — Seresto Flea & Tick Collar for Dogs (Large) edges ahead with a PawBench Score of 72 to 70. Both are genuinely good; pick Frontline Plus for Dogs (6-Dose) if kills fleas, ticks, and chewing lice matters more to you.
| Spec | ||
|---|---|---|
| Buy | ||
PawBench Scoremethodology → | Effectiveness 75 Ingredients 78 Vet Endorsement 72 Value 64 Owner Satisfaction 72 | Effectiveness 79 Ingredients 76 Vet Endorsement 70 Value 63 Owner Satisfaction 65 |
| Buyer sentiment | Flea Control Ease Of Use Itching Buyers praise flea control and ease of use. Mixed feedback on effectiveness and flea reduction. Some flag itching. Based on 27,321 user mentions | Ease Of Use Flea Prevention Scratching Buyers praise ease of use and flea prevention. Mixed feedback on effectiveness and flea reduction. Some flag scratching. Based on 7,648 user mentions |
| Protection Duration | 8 months (collar) | 1 month per dose (6-dose pack) |
| Application Method | Collar (wear and forget) | Topical (spot-on) |
| Dog Size | Over 18 lbs | 45–88 lbs |
| Active Ingredients | Imidacloprid, Flumethrin | Fipronil, (S)-Methoprene |
| Water Resistance | Yes (waterproof) | Yes (after 24 hrs) |
| Flea & Tick Kill | Fleas, ticks, lice | Fleas, ticks, flea eggs & larvae |
* Prices are approximate and may vary. Please check the latest price on Amazon.
What owners actually say
Pros & cons
Seresto Flea & Tick Collar for Dogs (Large)
Pros
- ✓8 months of continuous protection
- ✓No messy monthly applications
- ✓Water-resistant and odorless
Cons
- ✗Higher upfront cost than topicals
- ✗Counterfeit concerns from third-party sellers
Frontline Plus for Dogs (6-Dose)
Pros
- ✓Kills fleas, ticks, and chewing lice
- ✓Waterproof after 24 hours
- ✓Trusted brand with decades of track record
Cons
- ✗Monthly application required
- ✗Greasy spot on fur for a day or two