Home > Shop By Condition > Allergies, Yeast and Skin Problems > Quercetin For Dogs

Quercetin For Dogs

Itching! Scratching! Hives! Swelling! Redness!
Is Your Dog Suffering From Allergies?

Beautiful flowers and blooming trees in spring. Green grass in the summer. It’s all really pretty, but as the seasons change, so do the pollens and allergens in the air. Dogs can suffer from environmental allergies just like people, but they don't usually get runny noses or watery eyes; instead, their immune system reacts with itchy skin, redness and hives that cause them to constantly bite and lick. If you find your dog scratching but no fleas can be found, you might be dealing with environmental allergies.

Recent studies report that cases of environmental allergies in dogs have increased by 30% over the last decade. There are many theories about the increase. It could be due to increased allergens in the air; excessive medication use or over-vaccination, which can lead to a weakened immune response; poor breeding practices; or overuse of processed food and treats. Luckily, there are natural remedies for a dog’s itchy skin and allergies that can provide necessary relief to your fur baby.

How miserable is your dog when he or she has to wear the "cone of shame"? Sometimes it is the only thing that will stop your pet from licking and chewing on red, irritated skin. Conventional veterinary treatment for allergies consists of steroids, antibiotics and antihistamines. Most dogs will finish a course of medication and then, within a short period of time, the symptoms return. Overuse of any medications can weaken the immune system, throw off the digestive tract and potentially harm the liver with long-term use. These prescription treatments are not addressing the underlying immune reaction. So what CAN you give a dog for itching caused by allergies? A natural approach, such as quercetin for dogs, can offer safe, long-lasting results.

Allergy Symptoms in Dogs

Allergies are cumulative, meaning they build up with increased exposure. In dogs, the most common signs of allergies are not respiratory responses but allergic dermatitis. Allergic dermatitis is skin inflammation resulting from itching and irritation. The scratching and chewing can lead to hair loss and hot spots. Hot spots are inflamed, infected skin lesions that are the result of constant licking, biting and scratching. These areas are very uncomfortable for your dog, and many times they quickly progress to open sores with bleeding and hair loss.

  • Itching and scratching

  • Swelling of the face, ears, lips or eyes

  • Red, inflamed skin

  • Sneezing or wheezing

  • Constant licking

  • Hair loss

  • Ear infections

  • Runny discharge from the eyes or nose

  • Gastrointestinal problems: diarrhea, gas, itchy rear end

Types of Allergies in Dogs

The best way to protect your dog from an allergic response is to make sure your pet avoids the allergen, but it can be difficult to determine what’s causing an allergy in a dog. A reaction to seasonal allergens can be similar to a food allergy or flea allergy dermatitis.

  • Seasonal Environmental Allergies

    Some of the most common causes of seasonal environmental allergies in dogs include dust, dust mites, pollen and grass. These irritants are more prolific during certain times of the year, and your dog's reaction can be exacerbated if it spends a lot of time outdoors.

  • Flea Allergy Dermatitis (FAD)

    Flea allergy dermatitis occurs when a dog's immune system is hypersensitive to the antigen or protein in the flea saliva. One flea bite can cause intense itching that can last for days. This can be difficult to diagnose, as there does not need to be a flea infestation; it can be from one single flea.

  • Food Allergies

    It can take years for a dog to develop a food allergy. It can eat the same food every day and suddenly become allergic to a single ingredient or a complete protein source. Your dog could also be allergic to the dyes and additives in many commercial treats. To make diagnosis even more difficult, approximately 30% of dogs with food allergies also have environmental triggers.

  • Other Environmental Allergies

    Dogs can also have allergic reactions to many household chemicals, mold and mildew. Many of us treat our pets like children, so assume that they need the same environment free from pollutants and moisture. The candle you are burning or the scented laundry detergent you use can also impact your dog. Pets are much more sensitive to airborne particulates, and the exposure can cause breathing problems.

What Is Quercetin for Dogs?

Quercetin is scientifically proven to reduce your dog's histamine response, providing much-needed relief from allergies and inflammation. Quercetin belongs to a class of water-soluble plant pigments called flavonoids. Quercetin is a bioflavonoid that acts as an antihistamine for dogs and has antioxidant and anti-inflammatory properties. It has been referred to as a natural “Benadryl.” During an allergic reaction, the body releases histamine. Histamine is an organic compound responsible for the inflammatory and itch response of the immune system. Quercetin turns off the histamine response that causes the inflammation.

Quercetin relieves excessive scratching and itching, redness in paws and other symptoms related to seasonal allergies; helps reduce histamine response with mast cell tumors; and has been shown to have anti-cancer effects.

Is Quercetin an Antihistamine for Dogs?

Are you struggling with how to treat dog allergies? Are you searching for an effective allergy medicine for dogs? A safe alternative to prescription medications? Look no further! Many veterinarians suggest Benadryl or Apoquel for allergies in dogs. Like any medication, they do provide relief from symptoms, but they can come with negative side effects. Antihistamines, like diphenhydramine, can cause drowsiness or increased heart rate in some dogs, while immunosuppressants, like oclacitinib, basically reduce the immune system's ability to react to bacteria, fungi and viruses. Short-term use will stop the itching and scratching but may make your dog more susceptible to illnesses or infections not related to allergies. Studies report an unusually high number of dogs with side effects such as weight gain, ear infections and uneasiness.

Quercetin is an all-natural allergy medicine for dogs. AllerEaze is an herbal blend of quercetin and nettle leaf, powerful antihistamine and anti-inflammatory ingredients. It is made in the USA with non-GMO ingredients. Our quercetin for dogs can help reduce inflammation and allergic responses.

Quercetin For Dogs Can Help Reduce Inflammation & Allergic Responses

  • Quercetin for Dog Allergies (Seasonal)

    Respiratory symptoms, such as sneezing and eye irritation, are common allergy symptoms in humans, but dogs react with excessive scratching, licking, chewing, rashes, hot spots, hair loss and even digestive upset. Dog owners may not realize that their dogs can have seasonal allergies. Many holistic veterinarians refer to quercetin as nature’s own Benadryl. It is a safe, natural alternative to Apoquel. Quercetin suppresses the histamine reaction and blocks inflammatory enzymes to reduce swelling and itching.

    Most dogs with seasonal allergies have either taken antibiotics or steroids at some point to control their allergies. These medications destroy the natural bacteria your pet needs to maintain a healthy immune system. Many dogs with allergies will also have ear infections, genital licking, digestive symptoms such as loose stool and skin infections, and with all of these conditions, the pet will benefit from Power Probiotic. If your pet has allergies, for best results, use AllerEaze along with Power Probiotic, as the two provide a combined benefit in supporting the immune system. We offer the two products together at a discounted package price.

  • Dogs With Mast Cell Tumors (MCTs)

    Canine mast cell tumors are the most common type of skin cancer found in dogs. They can be found on the limbs, in between toes and in the spleen, liver and bone marrow. Both normal and cancerous mast cells contain chemicals that can be released into surrounding tissues. When these chemicals (particularly histamine) are released into the normal surrounding body tissues, side effects can include digestive problems (for example, bleeding ulcers), skin rashes, shortness of breath and other symptoms.

    The quercetin in AllerEaze helps to control the histamine response from mast cell tumors and reduce inflammation, which reduces recurrences. According to scientific research, quercetin and flavonoids have been shown to limit cancer cell growth in tumors. Mast cell tumors vary greatly in their size, shape, appearance and texture. The only way to definitely identify them is with a biopsy and pathology report, which help to diagnose them based on location, grade and size. If your dog is diagnosed with a mast cell tumor, a holistic approach with diet changes and supplements can be used along with conventional treatments provided by your veterinarian to support your dog's immune system and prevent recurrence. Happy Paws Hemp Extract, Curcumin Complex for Pets and Resveratrol for Dogs have also been very helpful for dogs with mast cell tumors.

AllerEaze For Pets - Contains quercetin and nettles.
Natural anti-histamine and anti-inflammatory plant extracts.
Sort By:
Page of 1
Olive Leaf Extract For Pets Olive Leaf Extract For Pets

Olive Leaf Extract for Pets

90 capsules

Recommended For Pets Over 6 Pounds

Excellent Value - 500 mg Capsule = 2.5 Capsules Other Pet Brands
9 Month Supply For Cats & Dogs <15 Pounds. 45 Day Supply For Large Dogs

Olive Leaf Extract Can Benefit Dogs & Cats With:

  • Skin infections and yeast infections: including allergies, yeast, licking and itching

  • Ear infections

  • Urinary tract infections and bladder issues

  • Chronic immune problems and autoimmune conditions

  • Asthma, upper respiratory infections (URIs) and viruses

  • Stomatitis and gingivitis

  • High blood pressure

  • Diabetes

What Is Olive Leaf? An Ancient Healing Herb

Olive Leaf Extract for Pets is a powerful antiviral, antibacterial and antifungal supplement for dogs and cats. It helps to support a healthy immune system. Ask Ariel's Olive Leaf Extract For Pets is helpful in so many ways. It combats yeast and skin infections, fights viral and respiratory infections, helps to maintain urinary tract health, helps pets with autoimmune diseases such as stomatitis, and is beneficial for pets with high blood pressure and diabetes.

Olive leaf has been used as a source of plant medicine for over 3,000 years. The olive tree was cultivated by the ancient Romans, Greeks, and Egyptians for use as medicine and food. Ancient practitioners used olive leaf to fight infection, heal rashes, help with blood conditions, and for general good health. Historically, the olive tree and its branches have been considered a symbol of peace and health.

Olive leaf contains oleuropein, the phenolic compound that is responsible for many of its health benefits. Our Olive Extract for Pets is standardized to contain 20% oleuropein, which means that each capsule is guaranteed to have a significant amount of this powerful compound to ensure its effectiveness. Most comparable pet products contain about 15% oleuropein. Olive Leaf Extract for Pets is also rich in antioxidants - the compounds that can neutralize free radical damage. The leaves contain an antioxidant that is comparable to vitamin E, along with antioxidant flavonoids that help to regulate cellular activity.

Olive Leaf Extract for Pets can help strengthen your pet's immune response to bacteria, viruses and fungi. It promotes a healthier immune reaction to infections of the skin, ear, respiratory system, and urinary tract and chronic viral conditions. When combined with veterinary prescriptions, it can help your dog or cat to recover faster and prevent chronic infections.

Human-Grade Ingredients, Scientifically Proven To Support Healthy Immune System Function

Olive Leaf Extract for Pets is one of the most useful and diverse natural supplements for cats and dogs available. Olive leaf is a potent antimicrobial with antibacterial, antiviral and antifungal properties. It contains protective polyphenols to improve immune function and offer powerful antioxidant protection. Olive Leaf Extract for Pet's active ingredient, oleuropein, helps fight against pathogens while causing no harm to healthy bacteria in your pet's gut and mucous membranes.

Olive leaves contain many beneficial plant compounds, such as tocopherols, flavonoids, and polyphenols. Polyphenols are a group of plant chemicals that have antimicrobial activity against a wide variety of viruses, bacteria, yeasts and fungi. Scientific research has found that olive leaf extract contains up to 30 different polyphenol compounds that work synergistically to provide exceptional antioxidant and immune-supportive properties. The polyphenol oleuropein has been tested in clinical trials and found to have exceptional combined antibacterial and antifungal action.* It can help to ward off ear infections in dogs and cats, pet urinary tract infections, and dog yeast infections.
*Reference: Research study published in Molecules. 2007; 12(5):1153-1162. Phenolic Compounds and Antimicrobial Activity of Olive (Olea europaea L. Cv. Cobrançosa) Leaves. Pereira AP, Ferreira IC, Marcelino F, Valentão P, Andrade PB, Seabra R, Estevinho L, Bento A, Pereira JA.

The powerful antioxidants and flavonoids in Olive Leaf Extract for Pets can help to minimize free-radical damage to the body and decrease inflammation. Antioxidants can neutralize the free radicals that can damage cells and weaken the immune response. Flavonoids have anti-inflammatory benefits. Decreasing inflammation in your pet's body can help to decrease the symptoms of inflammatory conditions, such as stomatitis or pillow foot, asthma in cats, allergies, skin infections and chronic autoimmune diseases.

Fights Infection: Essential Aid To Manage Skin Conditions & Yeast Infections

Olive Leaf Extract for Pets is especially beneficial for cats and dogs with ear infections, skin infections and yeast overgrowth (tear-stained eyes, ear discharge, cheesy smell, licking groin, yeasty paws). Cats and dogs use their skin to help remove toxins from their bodies. The toxins may be environmental, chemical, produced by the metabolic processes of their body (i.e. cats and dogs with kidney disease may have an ammonia-like smell) or yeast overgrowth from the gastrointestinal tract. When pets have a build up of toxins, it can cause red, itchy, smelly skin and continuous scratching that can lead to skin infections. Conventional veterinary treatments are antibiotics and steroids. The antibiotics can upset the microbiome balance in the gastrointestinal tract by killing off the good "friendly bacteria," which is needed for your pet's immune system, along with the bad bacteria. Steroid medications calm inflammatory response, but they achieve this by pushing the toxins deeper into the body. If your pet does need an antibiotic or steroid, it is very important to use Power Probiotic in conjunction with those medications.

Candida albicans, which causes yeast infections, is classified as both a yeast and a fungus. It may be an underlying cause of allergies, skin and coat problems, ear infections, and digestive sensitivities. Candida albicans, along with a host of other bacteria and fungi, are found in healthy digestive systems. The good bacteria in your pet's GI tract keeps it in check, but the overuse of antibiotics or steroids, diets high in carbohydrates (grains and starches), environmental or food allergies, or stress can cause an overgrowth of yeast. Olive leaf is highly effective in treating many kinds of bacteria and fungus. Research* has found that olive leaf extract is effective against Candida albicans. Use Olive Leaf Extract along with K9 Yeast Defense and Power Probiotic for synergistic treatment of yeast infections in dogs.
*Reference: Research study published in Curr Med Mycol. 2015 Dec; 1(4): 37–39. Evaluation of the antifungal activity of olive leaf aqueous extracts against Candida albicans. Z Nasrollahi1 and M Abolhasannezhad.


"Bruiser had chronic yeast and skin problems. We had been to the veterinarian many times but the problem would just come back. We used Ask Ariel's diet tips and supplements which included Olive Leaf Extract. Bruiser's yeast finally cleared up and I receive many complements on how nice his coat looks. It was the best money I could have spent." - Genette, Hawaii

Powerful Anti-Viral For Chronic Respiratory Conditions

Olive Leaf Extract for Pets is a natural anti-viral supplement that is helpful for cats and dogs with respiratory conditions including asthma, chronic upper respiratory infections (URIs), allergies, and chronic bronchitis. It's anti-viral properties make it an ideal supplement for cats with viral conditions such as feline leukemia (FeLV), feline immunodeficiency virus (FIV or feline AIDS), feline herpes (FHV-1), and calicivirus. Olive leaf extract has been researched for its antimicrobial activity against multiple types of bacteria and fungi that can cause respiratory infections. The research* indicates that olive leaf inhibited the growth and spread of all tested pathogens. Olive leaf extract can interfere with the amino acid production that is critical for viral replication. It can penetrate infected cells, prevent spreading and potentially destroy the virus**. Olive leaf extract has been used as an adjunct veterinary treatment for feline leukemia virus (FeLV), feline immunodeficiency virus (FIV) and feline herpes (FHV-1).
*Reference: Research study published in Molecules. 2007 May; 12(5): 1153–1162. Phenolic Compounds and Antimicrobial Activity of Olive (Olea europaea L. Cv. Cobrançosa) Leaves. Ana Paula Pereira, Isabel C.F.R. Ferreira, Filipa Marcelino, et.al.
**Reference: Research study published in Mikrobiyol Bul. 2020 Jan;54(1):79-94. doi: 10.5578/mb.69019. Comparison of Antiviral Effect of Olive Leaf Extract and Propolis with Acyclovir on Herpes Simplex Virus Type 1. Mustafa Altındiş, Ferhat Gürkan Aslan, Hüseyin Uzuner, Havva Ünal, et.al.

Supports Urinary Tract Health

Olive Leaf Extract for Pets is effective in treating dog or cat urinary tract infections (UTIs) because of its antibacterial activity against specific pathogens. The urinary tract is naturally resistant to bacteria. As urine passes through, it kills much of the harmful bacteria in the tissue membranes, but there is always the risk of infection. The most common pathogens in pet urinary tract infections are Escherichia coli, Staphylococcus, Streptococcus, and Pseudomonas spp. Scientific research studies have shown olive leaf extract to be successful in eliminating Escherichia coli, Pseudomonas, Staphylococcus, and Streptococcus pathogens.*

UTIs can be very painful for your pets. They can cause frequent and difficult urination, blood in the urine, smelly urine, and genital licking. Urinary tract infections in cats and dogs may be caused by bacteria from dirt or feces, a weakened immune system, or chronic antibiotic use. Unfortunately, some pets are more susceptible to repeat UTIs. Olive Leaf Extract combined with Power Probiotic can help to prevent the cycle of reinfection.

*Reference: Research study published in Biomed Res Int. 2014; 2014: 839019. High-Level Antimicrobial Efficacy of Representative Mediterranean Natural Plant Extracts against Oral Microorganisms. Lamprini Karygianni, Manuel Cecere, Alexios Leandros Skaltsounis, Aikaterini Argyropoulou, et.al

Helps Reduce Blood Pressure

Olive Leaf Extract for Pets may help support healthy cardiovascular function and reduce blood pressure in your cat or dog. The oleuropein in olive leaf extract helps to produce nitrogen oxide which helps the blood vessels to relax*. This helps to maintain healthy blood pressure and blood flow.
*Reference: Randomized Controlled Trial. Eur J Nutr. 2017 Jun;56(4):1421-1432. Impact of phenolic-rich olive leaf extract on blood pressure, plasma lipids and inflammatory markers: a randomize controlled trial. Lockyer S, Rowland I, Spencer JPE, Yaqoob P, Stonehouse W.

Anti-Hyperglycemic Herb

Olive Leaf Extract For Pets can be used along with veterinary prescriptions to help support blood sugar and insulin levels in dogs and cats with diabetes. Olive leaf has been used to treat blood sugar issues for hundreds of years. Research has shown that the polyphenols in olive leaf can increase insulin sensitivity and increase insulin production in the pancreas, helping the body to better metabolize sugar. Scientific research* showed that animals treated with olive leaf extract had increased insulin levels and reduced blood glucose levels.
*Reference: Research study published in J Diabetes. 2017 Oct;9(10):947-957. doi: 10.1111/1753-0407.12508. Epub 2016 Dec 26. Effect of olive leaf extract on glucose levels in diabetes-induced rats: A systematic review and meta-analysis. Hamzeh Abunab, Wireen L Dator, Sana Hawamdeh.

Digestive System Support

Olive Leaf Extract for Pets can help to improve digestion by preventing infections and irritations in the digestive tract. It has also been shown to be effective in treating various types of intestinal parasites, including giardia and worms. Its antimicrobial properties are effective against Campylobacter jejuni and Helicobacter pylori*.
**Reference: Research study published in Biomed Res Int. 2014; 2014: 839019. High-Level Antimicrobial Efficacy of Representative Mediterranean Natural Plant Extracts against Oral Microorganisms. Lamprini Karygianni, Manuel Cecere, Alexios Leandros Skaltsounis, Aikaterini Argyropoulou, et.al.

Combine Olive Leaf Extract for Pets With Our Other Supplements For Best Results

Allergies, Skin Infections, Ear Infections & Yeast Infections: Many pets with allergies will also have skin irritation along with ear and yeast infections. Use AllerEaze to block histamines and help calm the allergic response. Power Probiotic can help to rebalance the intestinal flora. If your dog is licking at the genitals, gets chronic ear infections or has been on antibiotics, also use K9 Yeast Defense.

Power Probiotic AllerEaze for Pets K9 Yeast Defense

Feline Viruses: Cats with viruses generally have upper respiratory symptoms such as nasal discharge, sneezing, runny eyes and congestion. The three liquid remedies in the Immune Support Kit help to reduce inflammation and clear sinuses to improve breathing. Power Probiotic helps to promote the growth of friendly bacteria which are essential to a healthy immune system and Immune Harmony is a unique patented plant sterol formula that provides long term immune system support.

Immune Support Kit Power Probiotic Immune Harmony

Urinary Tract Infections: Once a pet has a urinary tract infection (UTI), repeat infections can become a chronic cycle. Maintaining a balanced pH is the key to a healthy urinary tract. Akutur promotes healing of the urinary tract and bladder. It provides pain relief, reduces inflammation and helps restore balance. Works best when used with NotaSAN anti-infection formula to control harmful bacteria and restore gut flora balance. If your dog or cat has a history of recurrent UTIs with antibiotic use, Power Probiotic is essential to restore the friendly bacteria needed for a healthy immune system and to help prevent chronic urinary tract infections.

Akutur Power Probiotic NotaSAN Drops

Olive Leaf Extract For Pets Ingredients:

One capsule contains:

Olive Leaf Extract (Olea europaea)(leaves)[standardized to contain 20% oleuropein] 500 mg

Other Ingredients: Cellulose (capsule), microcrystalline cellulose, vegetable stearate.

Made in the USA. Dairy free. Vegetarian. Gluten free. Soy free. Non-GMO.

Our Price: $34.95

AllerEaze Frequently Asked Questions (FAQs)

What is the best holistic treatment for pet allergies?

AllerEaze is an all-natural remedy for seasonal allergies in dogs and cats. It contains quercetin, a flavonoid that is scientifically proven to suppress allergic response and histamine release. AllerEaze also contains nettle leaf, a plant extract that helps to control inflammatory responses.

Can dogs and cats have environmental and grass allergies?

Cats and dogs are not allergic to grass but to the grass pollens. These pollens can travel through the air for miles, so cats and dogs can show allergy symptoms even if you don’t have grass in your yard. The most common symptom of environmental allergies in pets is itching. They may also sneeze and have irritation or draining at the eyes. AllerEaze provides natural anti-inflammatory and antihistamine relief for your pet.

What can I give my dog for allergies and itching?

AllerEaze is an all-natural antihistamine that provides fast relief for pet allergies, making it an excellent anti-itch remedy for dogs. Allergic dog itching results in scratching, chewing and biting. Rashes and hives are also common allergic reactions. Most of your dog’s immune system is located within the digestive tract, and skin problems can also result from food allergies. Many pets with allergies also have a yeast overgrowth, which can cause doggie odor, constant licking at the paws and genital area, scooting and ear infections. K9 Yeast Defense is excellent at controlling yeast overgrowth and works well with AllerEaze.

Is quercetin a natural anti-histamine for dogs and cats?

Quercetin is scientifically proven to have anti-allergic and antihistamine properties. Histamine is released as your pet’s immune system responds to a substance (pollen or other allergen) coming in contact with the mucous membranes (nose, mouth, intestines, etc). Antihistamines block the allergic reaction. Quercetin has been referred to as a natural Benadryl.