---
product_id: 554497289
title: "Harmony - Skin & Coat Supplement with Quercetin for Dogs - Balanced Histamine Support for Seasonal and Environmental Allergies - Veterinarian Formulated"
brand: "four leaf rover"
price: "$63.20"
currency: USD
in_stock: true
reviews_count: 8
category: "Four Leaf Rover"
url: https://www.desertcart.us/products/554497289-harmony-skin-and-coat-supplement-with-quercetin-for-dogs-balanced
store_origin: US
region: United States of America
---

# Organic broccoli sprouts & spirulina detox 200mg Quercetin for histamine balance Made in GMP-certified USA facility Harmony - Skin & Coat Supplement with Quercetin for Dogs - Balanced Histamine Support for Seasonal and Environmental Allergies - Veterinarian Formulated

**Brand:** four leaf rover
**Price:** $63.20
**Availability:** ✅ In Stock

## Summary

> 🐾 Elevate your dog’s allergy defense with vet-crafted, natural power!

## Quick Answers

- **What is this?** Harmony - Skin & Coat Supplement with Quercetin for Dogs - Balanced Histamine Support for Seasonal and Environmental Allergies - Veterinarian Formulated by four leaf rover
- **How much does it cost?** $63.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/554497289-harmony-skin-and-coat-supplement-with-quercetin-for-dogs-balanced)

## Best For

- four leaf rover enthusiasts

## Why This Product

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

## Key Features

- • **Powerful Detox Boost:** Organic broccoli sprouts & spirulina support liver & skin cleansing
- • **Thyroid Health Support:** Organic Irish moss aids healthy thyroid & heavy metal detox
- • **Vet-Formulated Assurance:** Holistic vet-designed for safety and maximum efficacy
- • **Trusted Quality Guarantee:** Proudly made in the USA with satisfaction or your money back
- • **Balanced Histamine Defense:** L-theanine & liposomal quercetin calm itchy skin fast

## Overview

Harmony is a premium, veterinarian-formulated skin and coat supplement for dogs, featuring 200mg of liposomal quercetin and natural botanicals like L-theanine, organic broccoli sprouts, spirulina, and Irish moss. Designed to support balanced histamine response, detoxification, and thyroid health, it’s made in a GMP-certified USA facility and backed by a satisfaction guarantee—perfect for millennial pet parents seeking holistic, effective allergy relief.

## Description

SUPPORTS A NORMAL HISTAMINE RESPONSE: Itchy skin is caused by histamine release. Harmony contains L-theanine, liposomal quercetin and Chinese skullcap to help regulate the mast cells and histamine release. SUPPORTS NORMAL DETOXIFICATION: Organic broccoli sprouts initiate Phase II liver detoxification and spirulina helps detoxify the skin from everyday toxins. SUPPORTS HEALTHY THYROID FUNCTION: Organic Irish moss supports healthy thyroid function and helps detoxify from heavy metals. VETERINARIAN FORMULATED: Formulated by a holistic veterinarian for maximum safety and benefit. MADE IN THE USA: All Four Leaf Rover products are proudly made in our NASC and GMP compliant manufacturing plant in Texas. SATISFACTION GUARANTEED: If you're not thrilled with the premium quality of Four Leaf Rover Harmony, we'll refund your purchase. No hassles. No questions. Guaranteed.

Review: 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.
Review: 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.

## Features

- SUPPORTS A NORMAL HISTAMINE RESPONSE: Itchy skin is caused by histamine release. Harmony contains L-theanine, liposomal quercetin and Chinese skullcap to help regulate the mast cells and histamine release.
- SUPPORTS NORMAL DETOXIFICATION: Organic broccoli sprouts initiate Phase II liver detoxification and spirulina helps detoxify the skin from everyday toxins.
- SUPPORTS HEALTHY THYROID FUNCTION: Organic Irish moss supports healthy thyroid function and helps detoxify from heavy metals.
- VETERINARIAN FORMULATED: Formulated by a holistic veterinarian for maximum safety and benefit.
- MADE IN THE USA: All Four Leaf Rover products are proudly made in our NASC and GMP compliant manufacturing plant in Texas.
- SATISFACTION GUARANTEED: If you're not thrilled with the premium quality of Four Leaf Rover Harmony, we'll refund your purchase. No hassles. No questions. Guaranteed.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Allergen Information | Gluten Free |
| Brand | FOUR LEAF ROVER |
| Customer Reviews | 4.1 out of 5 stars 174 Reviews |
| Dog Breed Size | Large, Medium, Small |
| Item Form | Powder |
| Item Weight | 51 Grams |
| Product Benefits | Immune Support |

## Product Details

- **Allergen Information:** Gluten Free
- **Brand:** FOUR LEAF ROVER
- **Item Form:** Powder
- **Item Weight:** 51 Grams
- **Product Benefits:** Immune Support

## Images

![Harmony - Skin & Coat Supplement with Quercetin for Dogs - Balanced Histamine Support for Seasonal and Environmental Allergies - Veterinarian Formulated - Image 1](https://m.media-amazon.com/images/I/71FD+cKueeL.jpg)

## Questions & Answers

**Q: According to the description, this is beef flavored but beef isn't listed as an ingredient, so what is the full list of ingredients?**
A: I’m not seeing beef flavor listed anywhere, this is a natural product no flavoring. But the ingredients are listed in the second photo:
Active Ingredients per 1 tsp (2.19 g):
Organic broccoli sprouts 
Spirulina
L-Theanine250 mg Organic nettle
Organic marshmallow root
Quercetin
Bromelain
Organic Chinese skullcap
Organic cat's claw
Organic Irish moss
Inactive Ingredients: None

## Customer Reviews

### ⭐⭐⭐⭐⭐ A natural answer to allergy medication.
*by T***. on February 22, 2026*

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.

### ⭐⭐⭐⭐⭐ Love their products-highly recommend!
*by J***N on April 9, 2025*

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.

### ⭐⭐⭐⭐ Good, but not great.
*by M***. on May 4, 2025*

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.

## Frequently Bought Together

- Harmony - Skin & Coat Supplement with Quercetin for Dogs - Balanced Histamine Support for Seasonal and Environmental Allergies - Veterinarian Formulated
- Four Leaf Rover Protect - Probiotics for Dogs - Veterinarian Formulated - with Natural Prebiotics and Antioxidants - Detoxification & Gut Health - 30 Day Large Dog Supply
- FOUR LEAF ROVER Yeast Guard for Dog Yeast - Veterinarian Formulated - Supports Healthy Skin, Ears & Paws - 100% Natural with Organic Herbs - 30 Day Medium Dog Supply

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-02*