Best Lemon Flavonoid Vitamin Supplements in 2026

BALANCED IMMUNE SYSTEM: Quercetin is a naturally occurring free radical scavenger that supports healthy seasonal immune system function. Laboratory studies have demonstrated that quercetin can also help to promote normal respiratory function.

WITH BROMELAIN: Bromelain has a long history of use by herbalists and is known to help support a balanced immune system response to environmental challenges.

CLASSIFICATIONS/CERTIFICATIONS: Kosher, non-GMO, soy free, vegan/vegetarian, nut free, made without gluten, dairy free, egg free

Max Potency! 1000 Mg Quercetin

120 Veggie Capsules

Vegan. Single Ingredient Supplement

✔️A POTENT COMBINATION TO BOOST THE IMMUNE SYSTEM.* Quercetin is a flavonoid (plant pigment) naturally found in fruits and vegetables. It is found in many foods, such as red wine, onions, green tea, apples, berries, and more. It is known for its Anti-oxidant Properties. *Quercetin Supplements by Gade Nutrition are 1000mg per serving. Now with finest ingredients including a proprietary blend of Quercetin, Bromelain, Vitamin C, D, and zinc.*

✔️THE KEY BENEFITS:* Quercetin with bromelain supports healthy aging, helps to reduce the damage and irritation caused by free radicals, helps promote a normal respiratory function, helps to fuel the immune system, and helps enhance the absorption of zinc.*

✔️ANTI-OXIDANT PROPERTIES.* Quercetin helps to lower the release of histamines,* A compound that is released by cells in response to allergic reactions, one of the most abundant antioxidants in the diet and plays an important role in helping your body combat free radical damage.* Quercetin 500 Mg is offered in Veggie Capsules to suit most diet preferences, promoting general health & well-being*

MAX STRENGTH QUERCETIN: aSquared Nutrition’s maximum strength Quercetin formula contains 500mg of Quercetin powder per capsule and 200 vegetable capsules per bottle for a full 200-day supply. Quercetin is a plant pigment flavonoid that is naturally found in berries, broccoli, and leafy greens. Quercetin is a powerful antioxidant and free radical scavenger that helps protect the body from cell membrane damage & DNA alterations. *

FEEL THE DIFFERENCE: Quercetin is a powerful antioxidant. Quercetin supplementation may support immune and skin health, and cardiovascular health. Additionally, Quercetin helps fight allergies, supports circulation, supports mood & energy levels, and may help protect your kidneys, brain & liver. *

POWERFUL ANTIOXIDANT: Flavonoids such as Quercetin are free radical scavengers that fight off oxidation. Diets high in Quercetin may help combat cognitive impair & allergies. *

Supports Antioxidant Status: Quercetin is a phenolic antioxidant found in green leafy vegetables, onions, apples and cherries.

Cardiovascular Health: Quercetin supports cardiovascular health by supporting blood vessel endothelial cellular integrity and function.

Immune Health: Quercetin has been shown to be one of the most bioactive flavonoids that supports a healthy immune system response.

Contains a combination of Quercetin, identity-preserved (IP) Vitamin C, Rose Hips, acerola, citrus Bioflavonoids, Hesperidin, rutin and pineapple bromelain in vegetable capsules

Antioxidant protection healthy immune function

90 vegetable capsules, 45 servings

➕ Source of Antioxidants - Quercetin is found in grapes and berries, which are flavonoids that has antioxidant properties. Antioxidants are essential for overall health and wellness.* And, our Quercetin dihydrate powder, a quercetin supplement, to your daily routine for a daily dose of antioxidants!*

🟠 Boosts Immune Health - Quercetin, or Quercetin dihydrate, is one of the antioxidants available as supplements. Supplementing with our Quercetin Dihydrate powder or Quercetin powder, an antioxidants supplement, may help support and fortify the immune system, making it an ideal addition to anyone who leads a healthy lifestyle!*

✨ Pure, Vegan & Gluten Free - Our Quercetin dihydrate powder are pure and clean supplement, as well as it's gluten free, soy free, and dairy free. Add our Quercetin powder, one of our antioxidant supplements, in your diet and routine. Not only that it's pure, our supplement does no contain added sugars!

𝗧𝗜𝗠𝗘𝗗-𝗥𝗘𝗟𝗘𝗔𝗦𝗘 𝗜𝗠𝗠𝗨𝗡𝗜𝗧𝗬 𝗖𝗢𝗠𝗣𝗟𝗘𝗫: Strengthen your body's natural defenses with our super blend of 50mg ZINC, VITAMIN C, and VITAMINS B2 & B6. Unlike quick-release zinc supplements, our capsules deliver nutrients GRADUALLY OVER 16 HOURS. This provides consistent support for your immune system.

𝟭𝟵% 𝗠𝗢𝗥𝗘 𝗣𝗢𝗧𝗘𝗡𝗧 𝗭𝗜𝗡𝗖 𝗖𝗜𝗧𝗥𝗔𝗧𝗘: To cut costs, other brands formulate with weak forms of zinc, such as sulfate or oxide. We use zinc citrate in our zinc vitamins for adults. It’s HIGHLY CONCENTRATED and 19% more bioavailable than weaker forms, which ensures MAXIMUM NUTRIENT ABSORPTION.

𝟰𝟬% 𝗠𝗢𝗥𝗘 𝗕𝗜𝗢𝗔𝗩𝗔𝗜𝗟𝗔𝗕𝗟𝗘 𝗩𝗜𝗧𝗔𝗠𝗜𝗡 𝗖: Similar supplements contain 1000mg+ doses of vitamin C, which can cause stomach upset. Plus, studies show that, in higher doses, <50% of vitamin C is absorbed. We use 100mg ascorbic acid, vitamin C’s purest form, for up to 90% ABSORPTION, and no gut irritation.

Year Round Support: This ideal formulation combines 500 mg of quercetin, 50 mg of bromelain & 1,235 mg of vitamin C to help support healthy immune function and your body’s ability to cope during seasonal changes.

Perfect Pair: While bromelain is believed to help enhance the body’s ability to utilize quercetin, both may help enhance the antioxidant activity of the other.

Big Boost: Our formula is especially designed to help support healthy sinus and respiratory function, collagen synthesis, cardiovascular health, cartilage and bone development, and nerve impulse transmission

600mg Quercetin + 600mg Nettles - Two plant extracts that have been shown to support the immune system and the body’s natural inflammatory response upon exposure to environmental challenges.*

Quercetin is a flavonoid found in many foods that works to promote a healthy inflammatory response.*

Nettles have a high vitamin C content underlying its immune-supportive and antioxidant properties that may also benefit a normal inflammatory response.*

PREMIUM IMMUNE SUPPORT: Our organic elderberry gummies combines the health benefits of Black Elderberry Extract, Echinacea Extract, which can better strengthen body's natural defenses, boost immunity. These organic elderberry syrup are rich in antioxidants and high potency, which can provide you and your family with the protection you need.

STRENGTHEN ANTI-OXIDATION: One study has proved that organic black elderberry boosted anti-oxidation ​is three times faster than a regular herbal supplement. For optimal protection all year-round, you can chew 1- 2 sambucus elderberry gummies vitamins per day to help our body remain balanced and defend naturally.

MOST VALUABLE BIOACTIVES: EnvyCure vegan elderberry gummies are made from the European black elderberry extract to ensure you can get a higher content and all-natural flavonoids, which are the most valuable antioxidants and phytochemicals in elderberry. Each serving elderberry gummies contains 150mg of elderberry extract, which is standardized to 25% anthocyanin (potent flavonoid BioActives) to ensure you get better immunity compared with other elderberry supplements.

【Benifit of ECHINACEA】Echinacea, also known as purple coneflower, which is a very popular herb for centuries, people commonly take it as immune system booster. It can improve digestive & immune system health.

【Powerful Antioxidants 】Our organic echinacea & elderberry gummies is loaded with high concentration of Flavonoid which are potent BioActives to promote your immune defenses, maintain healthy digestive system. Added with the Vitamin C & Zinc as aid to help stimulate activity of immune system cell and improve skin health and chronic fatigue.

【100% Natural Supplement】The organic echinacea gummies for kids & adults are free of GMOs, preservatives, artificial colors, soy, eggs, nuts, gluten, gelatin. These are vegetarian and low sugar echinacea gummies, only uses all-natural ingredients.

Quercetin with Bromelain – More potent than other Quercetin supplements, our Mega Quercetin includes 600 mg of Quercetin along with Vitamin C, Bromelain and Bioflavonoids.

Feel Well – This powerful formula combines antioxidant Vitamin C with bioflavonoids to create an immune support supplement that may also help support sinus relief.

The Smart Choice – Our Mega Quercetin is vegan and comes in easy-to-swallow VegCaps; just take one VegCap two times daily for immune system and sinus support.

Supports Optimal Health; Citrus Bioflavonoids comprise a group of water-soluble plant pigments found in foods such as oranges & lemons; This formulation offers natural, citrus bioflavonoids to promote and support optimal health

Antioxidant; Citrus bioflavonoids possess antioxidant properties that help fight cell-damaging free radicals in the body

Gluten, Wheat & Dairy Free; Solgar Citrus Bioflavonoid Complex is non-GMO, vegan, kosher, and free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, preservatives, and color

WHAT ARE CITRUS BIOFLAVONOIDS: Citrus Bioflavonoids are comprised of a group of water-soluble plant pigments that are found in citrus foods like lemons and oranges and contribute to the colorful look of these food

ANTIOXIDANT: Citrus bioflavonoids possess antioxidant properties in order to help the body fight off cell-damaging free radicals

OPTIMAL HEALTH: The formulation of Solgar Citrus Bioflavonoids offers natural, citrus bioflavonoids in order to support optimal health

Quercetin with Bromelain Supplement: Per serving (2 gummies) contains 1000mg quercetin and 200mg bromelain. Both are derived from natural fruit extracts. Quercetin is a powerful antioxidant and present in many vegetables, and bromelain comes from the pineapple stem.

Health Benefits: Quercetin gummies support immune system health, support lungs and healthy breathing.

High Dose & High Potency: The dose of quercetin is 500 to 1,000 mg per day, suitable for both adults and children. Bromelain helps increase the bioavailability and positive benefits of the flavonoid quercetin.

(2 MONTH SUPPLY | 120 GUMMIES) - Maximum Strength 1000mg Blend of Quercetin with Zinc, Vitamin C and Elderberry Supplement Extract for Adults and Kids

BALANCED IMMUNE SYSTEM*- Quercetin is a naturally occurring free radical scavenger that supports healthy seasonal immune system function.* Laboratory studies have demonstrated that quercetin can also help to promote normal respiratory function.*

ZINC QUERCETIN SUPPLEMENT - Quercetin 1000mg + Zinc, 500mg per chewable gummy, is packed with double the dosage of our competitors and Zink Vit C Powder, our Qucertin will provide daily antioxidants, immune defense, and acts as an anti-inflammatory immunity system booster all throughout the day.

QUERCETIN NETTLE PLUS: Natural Allergy Relief - Supports Healthy Histamine Release

SUPPORTS HEALTHY HISTIMINE SUPPORT AND IMMUNE SYSTEM: Contains Quercetin, which inhibits the manufacture and release of histamine. Stinging Nettle Leaf contains a large amount of Vitamins A, C, and E. These vitamins are associated with both antioxidant and immune system modulating activities

REDUCES HISTAMINE PRODUCTION: Bromelain contains properties which act as an Anti-Inflammatory and reduces swelling and breaks up large, negatively charged proteins which attract fluid such as histamine and bradykinin.

Polyphenols supplements: Codeage Polyphenols Broad Spectrum offers a high-quality blend of 15 different berries, fruits, and botanical extracts to offer a vegan all-in-one polyphenols solution.

Green tea capsules: This polyphenol formula features organic and decaf green tea leaf extract. Green tea is a well-known source of polyphenols and can conveniently be consumed in a green tea pills format.

Quercetin supplement: Codeage Polyphenols capsules also includes quercetin. Quercetin is a flavonol plant that comes from the flavonoid group of polyphenols. You can find quercetin in different vegetables, seeds, and fruits.

LIQUID VITAMIN C: Nanofood Wonder-C offers 1000 mg of vitamin C encapsulated in liposomes. Easy to drink or pour in a tablespoon, this vitamin C liquid supplement comes in delicious orange tangerine flavor with no added sugar.

VITAMIN D: Featured in an innovative and easy-to-serve bottle, Nanofood liposomal vitamin C delivers 100 mcg of liquid vitamin D3 4000 IU as cholecalciferol along with 10 IU vitamin E as D-alpha tocopherol and 15 mg of zinc bisglycinate.

LIPOSOMAL PROPRIETARY BLEND: A liposomal proprietary blend has been added to the formulation to provide liposomes in a phospholipid complex derived from non-GMO sunflower oil. These sunflower sourced phospholipids contain phosphatidylcholine.

HELP REDUCE DIETARY URIC ACID LEVELS: Keeping uric acid levels in check can help balance a healthy metabolism; Dr. Formulated Drop Uric Acid is made to help you reduce dietary uric acid levels with a blend of Clinically Studied polyphenols and nutrients

POWERHOUSE POLYPHENOL: Quercetin helps lower dietary Uric Acid and support healthy inflammation and blood pressure; We’ve combined 500mg of Quercetin, 50mg of Artichoke Luteolin—for added antioxidant and anti-inflammatory benefits—and 500mg of vitamin C

POWERHOUSE POLYPHENOL: Quercetin helps lower dietary Uric Acid and support healthy inflammation and blood pressure; We’ve combined 500mg of Quercetin, 50mg of Artichoke Luteolin—for added antioxidant and anti-inflammatory benefits—and 500mg of vitamin C

Quercitin Liquid Drops: If you’re looking for a bioflavonoid that can support your body on a cellular level, reach for these lemon-flavored Quercetin Liquid Drops! Available in a natural lemon flavor, add these Quercetin Liquid Drops to your daily supplement routine.

Multiple Benefits: Quercetin is a bioflavonoid found in many plants, including citrus, berries, leafy vegetables, herbs, spices, legumes, tea, and cocoa. It also may aid in the seasonal immune response and may help support histamine levels. Support inflammation health, normal cardiac function, cellular integrity, and more!

Vegan Formula: Per Serving 6.5 (4 mL): Quercetin (as Quercetin Dihydrate): 500 mg. Other Ingredients: Organic Vegetable Glycerin, Organic MCT Oil, Purified Water, Less than 2% of: Sunflower Lecithin, Acacia Gum, Natural Flavors, Citric Acid, and Potassium Sorbate.

POTENT COMBINATION - This quercetin and bromelain with zinc supplement is made in the USA and may help support immune and lung health. This maximum strength quercetin with zinc formula may also help support your body’s ability to cope during seasonal and environmental changes.

DISCOVER OUR QUERCETIN RICH SUPPLEMENT - Truthentics Bromelain Quercetin Supplement with Zinc contains 800 mg per serving of quercetin, a flavonoid naturally found in fruits and vegetables, that has potent antioxidants and offers many health benefits. Zinc and bromelain are added to help provide additional immune support and to help assist with bioavailability and Quercetin absorption.

YEAR ROUND SUPPORT - This bromelain with quercetin and zinc supplement helps support immune health, joint comfort, healthy digestion, respiratory health and overall well-being. Additionally, zinc and quercetin with bromelain may also help support energy production and a healthy metabolism.

ALLERGY SUPPLEMENT - Our Immune Allergy capsules contain five allergy-supporting herbs that help balance your body’s allergic response. We include 500mg of Quercetin, a strong antioxidant, to help balance histamine levels and inflammation and provide immune support.

INFLAMMATION SUPPORT - The addition of Bromelain, an enzyme that helps with the absorption of Quercetin, further balances inflammation, supporting your body’s response to environmental allergens.

POTENT EXTRACTS - Each capsule contains plant-based Eyebright, Nettle Leaf, and Butterbur Extracts that aid in maintaining healthy inflammation levels and providing allergy relief.

Holistic Approach To Immunity – Allergen Support contains QUERCETIN with VITAMIN C and ZINC; ingredients that give immunity support. It is also formulated with Nettle and Tinospora cordifolia (Giloy or Guduchi) which could potentially reduce symptoms associated with environmental and seasonal allergies.

Perfect For Your Diet – Our allergy support is ideal for VEGAN, KETO & PALEO types of diets. It's free from GMOs, gluten, soy, corn & glyphosate. Truly a unique allergy supplement that is up-to-date on the latest science to give the best possible results!

Natural Allergy Relief – Our immune boosters for adults help provide relief from symptoms like sneezing, runny nose, itchy eyes, and inflammation. The combined herbs and immunity vitamins may help COMBAT ALLERGIES so you can breathe easier, sleep better, and enjoy life to the fullest!

😊 【Vegan & Organic, Natural Premium Formula】Our Quercetin With Bromelain Gummies For Kids Adults, 600 Mg Quercetin +50mg Bromelain +100mg Elderberry , Combined With 180mg Vitamin C, 20mg Zinc & 90mg Vitamin D. Provide Essential Vitamins And Minerals For Your Body And Improve Your Healthy Lifestyle

😊 【100% Natural Ingredients】 This Quercetin Gummies 100% Organic, Made With No Soy, No Gluten, No Eggs, No Dairy, No Nuts, No Gelatin, No Gmos And No Artificial Color, Flavor Or Sweetener & No Preservatives. Safe Quercetin Bromelain Supplement For Your Family Adults And Kids

😊 【Multiple Impressive Health Benefit】Support Immune System, Support Joint, Bones & Muscles, Take Care Of Your Respiratory Health And Allergy Relief, Improving Cardiovascular, Respiratory, Boost Heart & Cardiovascular Health, Digestion, Joint Health, Lower The Release Of Histamines And Enhance Antioxidant, Nourish Skin & Hair And Anti-Aging

ALL-IN-ONE IMMUNE SUPPORT: Advanced formula. Combines three powerful ingredients to Support a Healthy Immune System. Stimulate your Immune System and stay healthy year-round.*

RESPIRATORY WELLNESS: With 800mg Quercetin and 200mg Bromelain. Two ingredients renowned for their ability to Support Respiratory Health and Function. Together, they Balance Inflammation and Support your Lungs. Making our supplement a great choice for those looking for overall Respiratory Support.*

HEALTHY HEART: With Zinc, an essential mineral important for Maintaining a Healthy Heart. High concentration dose (50mg Zinc). Combined with Quercetin and Bromelain, this supplement provides comprehensive support for Cardiovascular Health.*

8-in-1 Upgraded Formula Superfood + Nutrients: Our per serving organic quercetin gummies are made from 1200mg quercetin dihydrate with 500mg elderberry fruit extract, 300mg echinacea purpurea extract, 200mg bromelain, 200mg vitamin C, 30mcg vitamin D, 15mg zinc & 30mg sodium to help boost your immune system and improve overall health.

Multiple health benefits: To offer you maximum potency of quercetin premium blends formula, that support immune system, balance blood level, increase cell regeneration, boost heart & cardiovascular health, support joint, bones & muscles, boost metabolism and energy levels, nourish skin & hair. These immune support gummies create the first line of defense!

Extra Happy Families: Nothing’s better than when what’s good for you is also something you crave and enjoy and these vegan quercetin gummies are made from plant-based pectin, organic, vegan, non-GMO, gluten-free & gelatin-free, no synthetic or artificial colors, safe for adults, kids, men and women, so your family deserves the best.

Washed Organic Tart Cherries - Pesticide-Free Tart Cherries

Each daily serving delivers the specific antioxidants of drinking 5+ glasses cherry juice without the sugar of the cherry juice.

GMO Free, gluten-free, vegan friendly and kosher. Produced without sugar, artificial colors, fillers and additives.

⭐MADE WITH PREMIUM ALL NATURAL & VEGAN INGREDIENTS - NO Artificial ingredients, Coloring or Flavoring. No Magnesium Stearate. NO fillers, preservatives, GMO, Gluten, Wheat, Nuts, Dairy, Eggs, Shellfish, Soy, Gelatin. Experience the Difference & Invest in your health the right way today! Made in GMP certified facility in USA, and always Third party tested

⭐ ENDLESS HEALTH BENEFITS FROM OUR HIGHLY POTENT FORMULA: Our whole food bromelain with quercetin complex has immunity supporting properties and may help reduce inflammation. A natural antioxidant, our quercetin zinc supplement formulation may help improve your daily immune system function and can even aid with improving digestion! Our vegan formula may help promote respiratory health, enhance cognitive function, and give your immune system the boost it needs!

⭐INCOMPARABLE VALUE: Your search for the most cost-effective quercetin with zinc and vitamin C supplement ends here. This high-potency optimal natural formula provides you with a massive 90 servings bottle. Get the most value for your money with a 3 month supply of our Immune System Support Quercetin Bromelain Complex!