---
product_id: 1853863
title: "Seresto Flea & Tick Collar For Dogs Over 18 lbs., Treatment & Prevention, Vet-Recommend, 8 Month Protection"
brand: "seresto"
price: "3577409₫"
currency: VND
in_stock: true
reviews_count: 5
category: "Seresto"
url: https://www.desertcart.vn/products/1853863-seresto-flea-and-tick-collar-for-dogs-over-18-lbs
store_origin: VN
region: Vietnam
---

# 8 months continuous protection water-resistant & non-greasy kills & repels fleas & ticks on contact Seresto Flea & Tick Collar For Dogs Over 18 lbs., Treatment & Prevention, Vet-Recommend, 8 Month Protection

**Brand:** seresto
**Price:** 3577409₫
**Availability:** ✅ In Stock

## Summary

> 🐾 Stay ahead of pests, keep your best friend carefree!

## Quick Answers

- **What is this?** Seresto Flea & Tick Collar For Dogs Over 18 lbs., Treatment & Prevention, Vet-Recommend, 8 Month Protection by seresto
- **How much does it cost?** 3577409₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/1853863-seresto-flea-and-tick-collar-for-dogs-over-18-lbs)

## Best For

- seresto enthusiasts

## Why This Product

- Trusted seresto brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety-First Design:** Breakaway collar prevents accidents without compromising protection
- • **8-Month Power Shield:** Long-lasting protection that outperforms monthly treatments
- • **Contact Kill Technology:** Fleas and ticks die without biting your dog—comfort first
- • **Vet-Recommended Defense:** Trusted by vets as the #1 flea & tick collar for large dogs
- • **Waterproof & Hassle-Free:** Keeps working through swimming, rain, and baths

## Overview

Seresto Flea & Tick Collar offers 8 months of vet-recommended, water-resistant protection for dogs over 18 lbs. Using innovative contact kill technology, it repels and eliminates fleas and ticks without greasy residue or odor. Designed for comfort and safety, this collar withstands swimming and bathing while preventing infestations, making it the ultimate hassle-free defense for your dog’s health.

## Description

Give your dog long-lasting protection against fleas and ticks with the number-one vet-recommended flea and tick collar*. Unlike other flea and tick protection, Seresto large dog collars kill and repel fleas and ticks for 8 continuous months. Seresto collars make your dog’s comfort a priority by killing fleas and ticks through contact, so pests don't have to bite your dog to die. Existing fleas die after 24 hours of initial application of the collar. After 24 hours, any new fleas on the dog are killed within 2 hours with protection against further flea infestation lasting 8 months. The prevention of infestations with new ticks starts at 48 hours after application of the collar. 48 hours after application, any new ticks are repelled and/or killed in as quickly as 6 hours. Seresto large dog collars protect against common pests like deer ticks, American dog ticks, brown dog ticks, and Lone Star ticks; they're also effective against chewing lice for 8 months. Fleas and ticks not only cause discomfort; fleas can transmit bartonellosis or tapeworms. Ticks can transmit Borrelia burgdorferi, which causes Lyme Disease. Check the product label for information on potential side effects. Seresto large dog flea and tick collars are for dogs at least 7 weeks old and over 18 pounds, and no prescription is needed. They're odorless, non-greasy and water-resistant to swimming, exposure to rain or sunlight, bathing, and shampoo treatment.* Seresto is a trademark of Elanco or its affiliates. * Seresto large dog is water resistant and remains effective following a shampoo treatment, swimming or after exposure to rain or sunlight. Under normal conditions, effectiveness lasts for 8 months. In order to maintain an 8-month duration, dogs must not be bathed more than once per month. For dogs that swim once a month or more, the control duration is reduced to 5 months for flea control and reduced to 7 months for tick control.

Review: LONG THOROUGH REVIEW from a skeptical pessimist - This collar is PERFECT. Okay so I was really really super skeptical about buying this for several reasons: - I hate the thought of my two pups having to constantly wear an extra collar - I've tried the flea/tick collars from Walmart and they were greasy and had a weird smell but even worse, they did NOT work. - I've read some of the horrifying reviews - I'm just a skeptical person and simply didn't think this would work. BUT IM A BELIEVER NOW. For context, I have a 3yr old short haired ~45lbs pup (pitbull, lab, corgi mix) and and a 7yr old long haired ~30-35lbs pup (Lhasa Apso terrier mix). I live in Maryland where the weather is just always unpredictable. I feel like we have like 6 seasons instead of 4. We have woods in the back of our house which deer always like to frequent, along with a swamp/pond across the street. This spring and the start of this summer we had a monsoon season where afterwards, there was an annoying infestation of ticks (mostly Lone Star and Deer ticks). It was disgusting. I legitimately could not take my dogs out for a walk without finding at least 4 ticks on them afterwards and on me!!! And this is on top of treating my dogs with the monthly tick/flea topical oil treatment. That's how bad it was, which is what prompted me to buy the Seresto collars. (I bought Large for both of them) Once I did and placed them on my dogs, after maybe like 1-2 days, I have not found a single tick on them. I know that sounds so far fetched but I don't know what else to say because it's absolutely true. It does take about 1-2 days for the medication to get into the system (from experience and from *I think* what the package said) because I still did find a few ticks on them the next day. But after that, not a single tick! They've been wearing the collars for about 1.5 months now so I'm still keeping an eye on them (I plan on updating this review after 7-8 months to see if the claim of lasting 8 months is legitimate). Right now though, I am sooo happy. Now I want to address some of the other reviews I saw. After I saw some of the pictures of rashes this collar left on some dogs, I was worried, especially cause my smaller one already has exist in skin issues. But both are doing perfectly well with no skin issues from the collar. I don't want to be presumptuous and I may be totally wrong, but I'm thinking maybe the rashes the other dogs had were because they're not used to wearing collars? So they just kept itching at it? Maybe? I say that because for me at least, my dogs are used to wearing their regular collars nearly 24/7 since they were babies. So when I added the Seresto collars, they were unphased. But then again I'm also aware that just like humans, each dog reacts differently. Luckily, My dogs have no rash problems from the collars. As for some claiming that the collar doesn't work.. I'm not sure what to say other than that they really truly work for my dogs, and I live in a heavily tick infested area. It really is like night and day in terms of how well this collar works at preventing tick bites. Especially with my long haired dog since ticks would easily hide in her fur. The collar isn't greasy nor does it have a strong emanating odor. BUT it's still medicated so it still has a very slight residue to it but nothing that interferes with everyday life. I'm sold and plan on continuing with this product from here on out. NO MORE GREASY NASTY SMELLY TOPICAL MONTHLY TICK GREASE! **Side note** Make sure you read the packaging instructions carefully!! They mention a few things like about how the efficacy is shortened to something like 5 months for dogs who swim a lot, or how the collar is designed to unlatch if the dog pulls incase it gets stuck on something (which I thoroughly appreciate) so you CANNOT substitute this as a walking collar! The collar DOES unlatch if you hold onto it and your dog pulls (personal experience: guests came over, one jumps and I accidentally grabbed the Seresto collar and it unlatched). But you CAN reattach it!! So definitely take the time to read the package instructions. Hope this helps! I really loveeeee this collar. THANK YOU SERESTO!!!
Review: No side effects - Perfect for the dog owner who is terrible at remembering to give a monthly chew. I love these! Very budget friendly. We have a dairy farm with working border collies and an inside husky princess and have used these for years. Our dogs have never gotten fleas or ticks so very effective and have never broken a collar off. Very durable and last the full length of time. We have not seen any side effects-no scratching, hair loss, redness or irritation of any kind. Highly recommend!

## Features

- Vet-recommended, premium flea and tick protection for dogs and puppies without the price tag
- Long-lasting flea and tick collar kills and repels fleas for 8 continuous months
- Seresto is the #1 veterinarian recommended flea and tick collar* *Elanco Animal Health, data on file
- Starts working after 24 hours to kill and repel fleas through contact so pests don't have to bite your dog to die
- Hassle-free, non-greasy, easy-to-use flea and tick protection

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00B8CG602 |
| ASIN  | B00B8CG602 |
| Age Range Description | 7 weeks and older |
| Best Sellers Rank | #238 in Pet Supplies ( See Top 100 in Pet Supplies ) #1 in Dog Flea Collars |
| Brand Name | Seresto |
| Breed Recommendation | Large |
| Color | Grey |
| Country of Origin | Thailand |
| Customer Reviews | 4.5 4.5 out of 5 stars (111,726) |
| Date First Available | January 28, 2013 |
| Date First Available  | January 28, 2013 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | How to apply the Seresto collar on your dog: 1. Remove the collar from its packaging. 2. Unroll the collar and remove the small plastic connectors from inside the collar, ensuring that no remnants remain. 3. Insert the end of the collar through the buckle and loops. 4. Adjust the collar around your dog's neck until it fits comfortably on them. 5. Two fingers should fit beneath the collar and neck … |
| Included Components | Tick Collar |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 1.56 x 4.5 x 4.5 inches |
| Item Package Dimensions L x W x H | 4.84 x 4.8 x 1.46 inches |
| Item Weight | 0.24 Pounds |
| Item model number | 86030594 |
| Item model number  | 86030594 |
| Manufacturer | Elanco US Inc |
| Manufacturer  | Elanco US Inc |
| Manufacturer recommended age  | 1 month and up |
| Material | Plastic |
| Model Name | Seresto |
| Number of Items | 1 |
| Product Dimensions  | 1.56 x 4.5 x 4.5 inches; 3.84 ounces |
| Size | 1 Pack |
| Specific Uses for Product | Parasites |
| Style | Large Dog Only |
| Target Audience Keyword | dogs |
| Warranty Description | 8 months |

## Product Details

- **Active Ingredients:** Imidacloprid, Flumethrin
- **Age Range (Description):** 7 weeks and older
- **Allergen Information:** Allergen-Free
- **Brand:** Seresto
- **Dog Breed Size:** Large
- **Global Trade Identification Number:** 00724089579607
- **Item Form:** Collar
- **Item Volume:** 31.64 Cubic Inches
- **Item Weight:** 0.24 Pounds
- **Scent:** Unscented

## Images

![Seresto Flea & Tick Collar For Dogs Over 18 lbs., Treatment & Prevention, Vet-Recommend, 8 Month Protection - Image 1](https://m.media-amazon.com/images/I/71ul7uasPQL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: why does it say that you are not to sleep with your pet? If they can eat it with no side effects//**
A: That is a foreign policy not a US policy. Like the California cancer warnings on everything. While I am not going to say these are completely safe, after reading through articles it is important to note that the two chemicals in the collars have been around for 30 years and gave been used as flea/tick treatments for that long. We have no evidence suggesting that there is a danger to humans when used correctly. 

While I generally do not use flea products of any kind, this year, after not needing anything for over 10 years, is a bad year. I tried Frontline and it did nothing but turn one of my cats into a heap of sores. We are using this collar from here on out until the fleas are eradicated. Just use it correctly and for the least amount of time possible. Treat your home. Keep cats indoors.

**Q: can i wear this?  i am a humanoid.**
A: In all seriousness probably not. But at the same time I actually had a Bayer rep come to my school (I was in a Vet program) and he wears one to all the seminars he goes to in order to prove that it is safe. (His predecessor used to drink k-9 advantix to prove the same point) Yes there are people that react to some of the chemicals, but that can be true of soaps and detergents and other products that ARE made for humans. At the end of the day its up to you.

**Q: what is the weight for a large dog collar?**
A: I ordered three large, even though my three dogs vary in size and weight.  But the options were only for small dog or large dog.  All three of my dogs needed the collars trimmed, because they come long enough for probably a Great Dane.  I kept the cuttings, intending to dispose of them, until my neighbor, who is on Social Security, saw them, asked for them, sewed them together, and made his little dog a collar out of the cuttings.  By the way...my collars went on on July 6, 2013, and two months later not a flea in sight.  I welcome this opportunity to help anyone learn about this great product.  No drops EVER lasted more than three weeks, and the good ones aren't cheap.  Hope this helps.

**Q: Do these really work? My dogs are outside all the time, day and night, on a farm and fleas are a terrible problem. Nothing non prescription works.**
A: We're in month 5 of our third collars for each of my two dogs. While my dogs are not out 24/7, they are out many times throughout the day, 30 minutes to a couple hours at a time, and we live in a very rural, thickly wooded area. The collars have lasted 8 months and I have taken them off at 9 months just because. I haven't seen a flea and the only ticks I've seen have been half-dead on the outside of their fur, like they were trying to get away. They don't smell like other flea collars, either. There are seven dogs in my neighborhood wearing these collars because I so highly recommended them and four dog-owners glad that they followed my advice. I just can't say enough good about these collars. Seriously.

## Customer Reviews

### ⭐⭐⭐⭐⭐ LONG THOROUGH REVIEW from a skeptical pessimist
*by A***R on July 16, 2016*

This collar is PERFECT. Okay so I was really really super skeptical about buying this for several reasons: - I hate the thought of my two pups having to constantly wear an extra collar - I've tried the flea/tick collars from Walmart and they were greasy and had a weird smell but even worse, they did NOT work. - I've read some of the horrifying reviews - I'm just a skeptical person and simply didn't think this would work. BUT IM A BELIEVER NOW. For context, I have a 3yr old short haired ~45lbs pup (pitbull, lab, corgi mix) and and a 7yr old long haired ~30-35lbs pup (Lhasa Apso terrier mix). I live in Maryland where the weather is just always unpredictable. I feel like we have like 6 seasons instead of 4. We have woods in the back of our house which deer always like to frequent, along with a swamp/pond across the street. This spring and the start of this summer we had a monsoon season where afterwards, there was an annoying infestation of ticks (mostly Lone Star and Deer ticks). It was disgusting. I legitimately could not take my dogs out for a walk without finding at least 4 ticks on them afterwards and on me!!! And this is on top of treating my dogs with the monthly tick/flea topical oil treatment. That's how bad it was, which is what prompted me to buy the Seresto collars. (I bought Large for both of them) Once I did and placed them on my dogs, after maybe like 1-2 days, I have not found a single tick on them. I know that sounds so far fetched but I don't know what else to say because it's absolutely true. It does take about 1-2 days for the medication to get into the system (from experience and from *I think* what the package said) because I still did find a few ticks on them the next day. But after that, not a single tick! They've been wearing the collars for about 1.5 months now so I'm still keeping an eye on them (I plan on updating this review after 7-8 months to see if the claim of lasting 8 months is legitimate). Right now though, I am sooo happy. Now I want to address some of the other reviews I saw. After I saw some of the pictures of rashes this collar left on some dogs, I was worried, especially cause my smaller one already has exist in skin issues. But both are doing perfectly well with no skin issues from the collar. I don't want to be presumptuous and I may be totally wrong, but I'm thinking maybe the rashes the other dogs had were because they're not used to wearing collars? So they just kept itching at it? Maybe? I say that because for me at least, my dogs are used to wearing their regular collars nearly 24/7 since they were babies. So when I added the Seresto collars, they were unphased. But then again I'm also aware that just like humans, each dog reacts differently. Luckily, My dogs have no rash problems from the collars. As for some claiming that the collar doesn't work.. I'm not sure what to say other than that they really truly work for my dogs, and I live in a heavily tick infested area. It really is like night and day in terms of how well this collar works at preventing tick bites. Especially with my long haired dog since ticks would easily hide in her fur. The collar isn't greasy nor does it have a strong emanating odor. BUT it's still medicated so it still has a very slight residue to it but nothing that interferes with everyday life. I'm sold and plan on continuing with this product from here on out. NO MORE GREASY NASTY SMELLY TOPICAL MONTHLY TICK GREASE! **Side note** Make sure you read the packaging instructions carefully!! They mention a few things like about how the efficacy is shortened to something like 5 months for dogs who swim a lot, or how the collar is designed to unlatch if the dog pulls incase it gets stuck on something (which I thoroughly appreciate) so you CANNOT substitute this as a walking collar! The collar DOES unlatch if you hold onto it and your dog pulls (personal experience: guests came over, one jumps and I accidentally grabbed the Seresto collar and it unlatched). But you CAN reattach it!! So definitely take the time to read the package instructions. Hope this helps! I really loveeeee this collar. THANK YOU SERESTO!!!

### ⭐⭐⭐⭐⭐ No side effects
*by A***M on January 3, 2026*

Perfect for the dog owner who is terrible at remembering to give a monthly chew. I love these! Very budget friendly. We have a dairy farm with working border collies and an inside husky princess and have used these for years. Our dogs have never gotten fleas or ticks so very effective and have never broken a collar off. Very durable and last the full length of time. We have not seen any side effects-no scratching, hair loss, redness or irritation of any kind. Highly recommend!

### ⭐⭐⭐⭐⭐ Never had any reactions, 4 years running
*by J***N on January 19, 2022*

I have a german shepherd/ black lab mix (possible aussie or blue tick hound) who is about 70 pounds and 8 years old. When i was a kid my pets got fleas really bad and mom tried everything. And i mean everything. To avoid the expensive veterinarian care. She ended up buyung these and in the long run spending more than the vet bill wouldve been in total costs with all the treatments we tried, but less instantly with buying these alone. Turned around our pets conditions in less than a week (2 cats less than a year old but fully grown, a pitbull mix ~ 1 year old, a pom mix 3 to 5 years old). So i continued buying these for my pups for the last 6 years. One has passed recently due to other complications, a pomeranian mix about 9 to 11 years old (same one as at my moms house). None of the pets ive seen with these have had any reaction. I will say my larger dog has dry skin problems but she had that before i used these collars and before i met her. These collars dont make it worse. Super simple, one complaint. It advertises reflective attachments. Yeah theyre not so great. Break easy and are hidden in fur so it doesnt work. They also became a tangle spot on my pom. But the collars work very well and are worth the money on their own. My large dog is still flea and tick free with a year old collar, but its winter now. I can honestly say they are effective for 6 months to a year. A word to the wise: follow all warnings and instructions. Clip the collar to the length of your dog's neck plus about an inch or two, cinch it down in the rings on the collar and remove the collar before baths. Keep your dog from chewing the collar and licking you after putting it on. Wash your hands. If your dog develops a reaction based on an allergy include that in the review, because not every dog has an allergy. If your dog ate the collar or chewed on it include that too bc its different if its just a normal wearing collar situation that causes something and if a dog eats something theyre not supposed to. I wonder how many bad reviews are based on this? Seresto however should include a warning label for allergens if there isnt one already. The collar becomes a dark grey and a hard plastic when its expired. Fresh out of the pack its soft and light grey with a white powder coating. We tried cheaper collars, they dont work to kill established fleas and they dont prevent ticks or flea eggs. Theyre little more than citronella bug spray in effectiveness. Seresto collars have the added benefit (im guessing they cant advertise bc its not been scientifically tested) of repelling any blood sucking pests. Ive not noticed any mosquitoes on my dog and we moved to an area last summer where they have mosquito trucks bc the mosquitos are that bad (they didnt have the trucks in tennessee, do in illinois). Cheaper collars dont do that. Seresto collars all the way for us! Will update on the off chance my dog develops a reaction.

## Frequently Bought Together

- Seresto Large Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Over 18 lbs. | 8 Months Protection
- Seresto Cat Vet-Recommended Flea & Tick Treatment & Prevention Collar for Cats | 8 Months Protection
- Seresto Small Dog Vet-Recommended Flea & Tick Treatment & Prevention Collar for Dogs Under 18 lbs. | 2 Pack

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-20*