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🌟 Elevate your dog’s seasonal defense with science-backed harmony!
Four Leaf Rover Harmony is a premium, vet-formulated powder supplement designed to support dogs’ seasonal allergy relief by regulating histamine response with liposomal quercetin and calming botanicals. It enhances detoxification through organic broccoli sprouts and spirulina, while promoting thyroid health with Irish moss. Proudly made in a NASC and GMP certified facility in the USA, this product offers a holistic, natural approach to immune and skin wellness for dogs of all sizes.






| ASIN | B0CBG373Q5 |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #16,436 in Pet Supplies ( See Top 100 in Pet Supplies ) #94 in Dog Herbal Supplements |
| Brand | FOUR LEAF ROVER |
| Brand Name | FOUR LEAF ROVER |
| Customer Reviews | 4.0 out of 5 stars 197 Reviews |
| Dog Breed Size | Large, Medium, Small |
| Item Form | Powder |
| Item Highlight | Liposomal quercetin, L-theanine, Chinese skullcap, broccoli sprouts and spirulina. Supports a normal histamine response. |
| Item Type Name | Harmony |
| Item Weight | 51 g |
| Manufacturer | Four Leaf Rover |
| Manufacturer Part Number | FourLeafRover_Harmony_SL |
| Model Number | FourLeafRover_Harmony_SL |
| Pet Type | Dog |
| Product Benefits | Immune Support |
| Target Species | Dog |
| UPC | 628504393338 |
| Unit Count | 1 Count |
J**N
Love their products-highly recommend!
Long review ahead: First of all, my very large boy, 106 pounds- Great Pyrenees mix has been battling MCT for the past 2 years. He had one tumor removed on his leg 2 years ago. I went into research mode looking for more holistic ways to treat him after surgery. We used the 7 Shrooms religiously, and I added Turkey Tail mushrooms a few months later. At first I was very frustrated because I could not mix it in sufficiently, as another review mentions. I learned to add the scoops of mushrooms into the bowl and then slowly add warm water and slowly stir until it’s runny gravy consistency. I then add the dry kibble to the bowl and stir. He eats it right up! Unfortunately, I had a medical emergency and was buried by medical costs so I stopped purchasing and giving him the mushrooms, and he developed another MCT (whether this is related to stopping the mushrooms or not I don’t know, but he was doing GREAT on them). He had surgery 10 days ago and the pathology revealed very slim margins. In doing more research, and considering it is spring and he has horrible allergies also requiring cytopoint injections, I wanted to find something to boost his immune system. I read that this has 200mg of Quercetin, which is great for fighting cancer cells. He’s been taking it a couple of days and he loves it. I add it to the others and he doesn’t bat an eye. I love this company and that their mushrooms are grown on wood and are third party tested. I know they are a bit pricey but worth every cent imo. I will update when we have used a few months.
B**Y
Pretty good product, but depends on the dog
I want to start by saying it really does depend on the dog! We have two olde English bulldogs that we give this too! Our female does not have skin or seasonal allergies but she gets the most yeasty ears I’ve ever seen and this absolutely helps so much and she’s only been on it for about two weeks. Now our boy dog who is primarily white, had a allergy test and he’s allergic to everything including dog and cat dander lol we’ve been giving him this for about a month, and honestly haven’t seen much of a difference , still chewing on his feet like crazy . It sucks because it’s one of the only things he can have that doesn’t have something in it that’s he’s allergic too. None the less I believe it’s a great product and stand by it 100%, it just truly depends on your dogs. I definitely recommend giving it a try and allowing some time, do I think it’s an overnight cure? Absolutely not, but it could definitely help
L**T
Great product, but if your dog has had antibiotics, consider a gut biome test
I love Four Leaf Rover products. They are always top notch and worked well for my dog, but the "allergies" were a constant battle, requiring four rounds of anti-fungals and anti-biotics over 18 months. I was told by one board certified dermatologist, a holistic vet, and two regular vets that the problem was allergies, and they all recommended Apoquel and Cytopoint. I suspected a leaky gut, so I gave my dog probiotics, kifer, bone broth, yogurt, etc. It wasn't enough. When I did a Gut Biome test, there was a problem where some bacteria was absent and some were overgrown. I gave my dog fecal transplant pills, and his hotspots and yeast disappeared, and now his hair is coming in thick and full. He even seems happier...waking up every morning with a big smile and spring in his step.
K**Y
Partially opened
When I opened this the inner seal was half open. There’s no seal on the outside so I do not feel comfortable giving to my dog. When I reached out to the company they did not seem concerned. I’ll leave their reply below. Thank you so much for reaching out! Occasionally, the safety seal can get partially caught in the ridges of the lid as the lid is being unscrewed. This can cause the seal to appear partially opened, but it is a normal occurrence and nothing to be concerned about.
M**.
Good, but not great.
We'll see how this works once the weather warms up but for now, I do think this took the edge off and kept me from having to give my dog daily Apoquel during this past winter. I'm not sure that he loves the taste (it's very green smelling) but if I mix it in with a topper for his kibble he eats fine. My other dog with MCT's wasn't affected by this (good or bad) but since it didn't seem to make a difference for her, I stopped adding it to her food. It certainly lasts longer when only given to one dog! Pricey but overall not a bad product to trial and see if it works for yours.
T**.
A natural answer to allergy medication.
I learned of this supplement from Layla the Boxer's mom. My Cairn has seasonal skin allergies that cause him to scratch and lick incessantly. He is a very picky eater and this product is easy to sprinkle over his food. It must not have much taste, or a disgusting one, because he eats without hesitation. It is very effective and usually calms his scratching/licking in a couple days and ends it in about a week. I only use the product as needed and have ordered it twice in as many years (I think).. I feel it is a good value and keeps him off prescription or OTC allergy medication.
J**E
Didn’t help my dog at all
Did nothing for my itchy dog. If anything, may have made itchiness worse. We have tried a number of remedies. Some have no effect, some have a bit of positive itch calming. This one was an expensive nothing, or made it worse for my chi-pom. Perhaps she is allergic to one or more of the ingredients.
D**Y
Mixed review
Did nothing for my German shepherd’s allergies but was helpful to my friends, Rhodesian ridge back’s allergies.
Trustpilot
3 weeks ago
5 days ago