Sergeant's Guardian Pro Flea & Tick Treatment Collar for Dogs
$7.19 was $7.99
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2.8 out of 5 stars with 84 reviews
effectiveness: 1.64 out of 5
quality: 1.64 out of 5
value: 1.71 out of 5
16% would recommend
31 recommendations
5 out of 5 stars
Thumbs up graphic, would recommend
5 January, 2026Verified purchase
Affordable dog flea collar, that actually fits universally and isn't a pain in the butt.
Works fantastic you're going to have a bit of a baby powder feeling on one side of it sometimes it's on both sides but obviously doesn't matter which way you put it on as long as it lines up with the way you tighten it I will mechanism on there. But it gives you plenty plenty of room if you have a large dog small dog literally you have more than enough I actually have half a foot left.
1 out of 5 stars
Thumbs down graphic, would not recommend
27 December, 2025Verified purchase
POISONUS
DO NOT BUY WILL PRACTICALLY KILL YOUR DOG Should be taken off the shelf
5 out of 5 stars
Thumbs up graphic, would recommend
26 November, 2025
(no review title)
This flea collar doesn't smell awful like most do! It's actually pleasant!
5 out of 5 stars
Thumbs up graphic, would recommend
3 November, 2025Verified purchase
(no review title)
Easy to use. Saw a difference within a few days.
1 out of 5 stars
28 October, 2025Verified purchase
Avoid this collar and do your reaearch on any of them
If I could give this product zero stars, I would. We got a 16 week ( 4 month ) old puppy that had unexpected fleas, so bought this collar without reading any reviews, sadly with much regret. The puppy had it in over two days and will not eat or drink and is acting very ill. The pack says it was okay to use on at least 12 week old dogs. Please keep your dog safe and stay far away from this flea collar. I just found a note on an SPCA website that says that flea collars are toxic to humans and pets. They will not even see a dog if they are wearing one. That should tell us something.
1 out of 5 stars
Thumbs down graphic, would not recommend
15 October, 2025Verified purchase
DO NOT BUY AT ALL COSTS!!
I would give this brand no stars if I could. It is terrible! The company should not be allowed to produce or sell these collars. I wish I had looked up reviews prior to purchasing this. I put it on my dog but within days she had a terrible reaction from this. It cause some weird issue to her skin and even after removing it, I noticed that now she barely has energy to walk. She wet her self because she could barely stand up. Terrifying! DO NOT BUY AT ALL COSTS!!
1 out of 5 stars
Thumbs down graphic, would not recommend
30 September, 2025Verified purchase
stinks and doesn't work
doesn't work and smells really bad
1 out of 5 stars
Thumbs down graphic, would not recommend
30 August, 2025Verified purchase
ZERO STARS
DO NOT BUY. This caused a bad chemical burn on my dogs neck. This should not be sold.
1 out of 5 stars
Thumbs down graphic, would not recommend
6 August, 2025Verified purchase
Do not buy
Use it for my two chihuahuas, I only keep it on for a day because they started scratching a lot. I realized it irritated the skin on their neck to the point is bleeding! Horrible product!
1 out of 5 stars
Thumbs down graphic, would not recommend
21 July, 2025Verified purchase
DO NOT BUY
Has left my dog with very concerning symptoms and a red neck. Wish I had read the reviews sooner. There was also a lack of real instruction that came with the box. Whatever was written on the sides of the small box was it. Don’t recommend based on personal and shared experience at all. This product is harmful to dogs.
4 out of 5 stars
Thumbs down graphic, would not recommend
15 July, 2025Verified purchase
Flea collar
Not sure it’s working 😬
1 out of 5 stars
Thumbs down graphic, would not recommend
26 May, 2025Verified purchase
DO NOT USE
DO NOT BUY THIS PRODUCT BOTH MY DOGS WERE SENT TO THE VET BECAUSE OF SEVERE ALLERGIC REACTION TO THE COLLAR THEY STARTED SCRATCHING WITHIN AN HOUR OF HAVING IT ON ! Makes the skin raw! SHOULD NOT BE SOLD IN STORES TAKEN OFF SHELFS
1 out of 5 stars
Thumbs down graphic, would not recommend
17 May, 2025
DO NOT BUY THIS SHOULD NOT BE SOLD TO ANIMALS!!!!!!
HORRIBLE PRODUCT. BOUGHT 2 AND BOTH MY DOGS HAD A SEVERE ALLERGIC REACTION AND WOULD NOT STOP CRYING. HAD TO TAKE THEM TO THE EMERGENCY VET. DO NOT RECOMMEND!!! DO NOT BUY!!!! THIS PRODUCT NEEDS TO BE BANNED FROM STORES.
1 out of 5 stars
Thumbs down graphic, would not recommend
15 May, 2025
RAW RED SKIN
The reviews on this are horrifying. Forgot until looking at the reviews that this is the same brand that left my cat with a raw painful neck! Reformulate or SHUT THIS BRAND DOWN.
1 out of 5 stars
Thumbs down graphic, would not recommend
11 May, 2025Verified purchase
Do Not Buy!
Terrible product. My pup now has a wet, red angry neck. He is miserable. I should have read the reviews before I purchased. This should be taken off the shelves. I have purchased Hartz before with no issues, just wasn't available at Target.
1 out of 5 stars
Thumbs down graphic, would not recommend
28 March, 2025
DO NOT BUY!!!
I purchased two of these collars for my dogs to repel ticks and fleas. Five minutes after putting the collar on them, one of my dogs started scratching her skin aggressively, breathing weirdly, and experienced irritation around the eyes. My other dog also experienced the same type of irritation around her eyes. Had to give them multiple baths with warm/cold compressions around the eyes to relieve the discomfort. DON’T BUY THESE COLLARS AND RISK YOUR DOG’S WELLBEING. This product should be removed from shelves!!!!!
1 out of 5 stars
Thumbs down graphic, would not recommend
16 March, 2025
Terrible Flea Collar
My dog barely had this collar on for ten minutes before it started bothering his eyes. I had to flush his eyes and give him multiple baths to get the powder from the collar off of him. I will never buy this collar again and it should be taken off the shelf.
1 out of 5 stars
Thumbs down graphic, would not recommend
28 February, 2025Verified purchase
Don't buy
They don't work and it gave my pug a chemical burn
1 out of 5 stars
29 October, 2024
originally posted on https://sergeants.com/
made my dog have an allergic reaction
after a couple of hours of my dog having it on he started crying and trying to get the collar off, he was rubbing his neck again the floor, i really don't recommend this product.
1 out of 5 stars
Thumbs down graphic, would not recommend
19 October, 2024
This doesn't work
I bought three of these for my three indoor dogs. These Treatment Collars do not protect, kill, or repel fleas. This product doesn't work, and I do not recommend it.