Best Oil Flavonoids in 2026

SUSTAINED RELEASE: NOW Vitamin C-1000 was specially formulated to provide a sustained release of vitamin C, known for its vital role in the immune system*

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

WITH ROSE HIPS: Added source of vitamin C!

Nature's Way Sambucus Elderberry Gummies support immune health with high potency vitamin C, and an excellent source of zinc. Gummies also contain highly concentrated (64x) black elderberry extract made from 3,200 mg of elderberries per serving.

Elderberries have naturally-occurring anthocyanins, which provide antioxidant support.* Antioxidants help neutralize free radicals.* Elderberries have been used for centuries for traditional immune support you can enjoy all year long.*

Adults and children 4 years of age and older chew 2 gummies daily. Great tasting gummies for the whole family!

ESSENTIAL IMMUNE SUPPORT: Zarbee's Daily Immune Support Syrup is made with an excellent source of vitamin C, zinc and real elderberry extract for immune support

ELDERBERRY SYRUP FOR AGES 12and: Our syrup with real elderberry extract contains nutrients, antioxidants, and flavonoids, which help support healthy cells and immune function; Our syrup is safe and effective for adults and kids ages 12and

INGREDIENTS INSPIRED BY NATURE: This Black Elderberry Immune Support* liquid is made from carefully selected ingredients inspired by nature— free of drugs, alcohol, artificial sweeteners, artificial flavors, dyes, and gluten

ANTIOXIDANT SUPPORT: Sports Research quercetin supplement supports antioxidant activity and seasonal immune system function. Just one (1) of our softgels provide 500 mg of quercetin, promoting antioxidant activity and an immunity health support.

CARDIOVASCULAR SUPPORT: This quercetin supplement helps support the cardiovascular system and provides heart health support.

PREMIUM INGREDIENTS: Quercetin is a polyphenolic bioflavonoid and our Quercetin capsules are the most bioavailable form there is. It’s sourced from Brazilian fava trees, then formulated with Coconut MCT Oil and Sunflower Lecithin to help aid with absorption. It is also standardized to 95% quercetin powder in the dihydrate form.

ANTIOXIDANT: Vitamin C with Bioflavonoids provides powerful antioxidant protection, supports immune function and strengthens collagen for healthy skin.*

SUPERIOR QUALITY STANDARDS: Our Vitamin C 1000 mg with Bioflavonoids is carefully tested and produced to superior quality standards.

GLUTEN-FREE: Our Vitamin C 1000 mg with Bioflavonoids is gluten free. It also contains no sugar, salt, yeast, wheat, soy, corn, dairy products, artificial colors, flavors or preservatives.

Immune Support: Get the immune-supporting and antioxidant benefits of vitamin C combined with natural citrus flavonoids

Healthy Skin: Promotes collagen production, which enhances skin, nail, and hair health

Wound Healing: Collagen production, antioxidative properties, and immune support make vitamin C an important nutrient for supporting post-surgical healing and injury repair

100% natural vitamin C from organic berries including camu camu, acerola & amla

Contains only natural vitamin C, NO added synthetic ascorbic acid

Helps bolster your healthy immune system; provides protective antioxidant activity; offers extra support during the winter months and pollen season

DAILY IMMUNE SUPPORT: Zarbee’s Kid’s Daily Immune Support* Syrup with real elderberry contains an excellent source of vitamin C; zinc & elderberry to help support your child’s immune system.* Can be added to your childs daily routine.

SAFE & EFFECTIVE: Our daily immune support syrup is made with concentrated real elderberry extract; known to contain nutrients; antioxidants; and flavonoids. Our children’s liquid is safe & effective for toddlers & kids ages 2+.

INGREDIENTS INSPIRED BY NATURE: Our great-tasting; natural elderberry flavor liquid is made from carefully selected ingredients inspired by nature—free of drugs; alcohol; artificial sweeteners; dyes; and gluten.

✔️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*

High concentrated 95% pure quercetin capsules. Natural soy-free sophora japonica source. Highest bioavailable dihydrate form. Rich source of antioxidants and flavonoids.

240 capsules per bottle. 2 capsule serving size. 1,000mg dose with 500mg per capsule. Up to a 4-month supply.

A natural herbal ingredient that provides important phytonutrients for promoting year round immune support in both men and women.

QuerceFIT Is The Most Activated Form of Quercetin - Phytosome technology is able to enhance quercetin absorption by more than 20x. Made of Sophora Japonica plant extracts to be the most bioavailable antioxidant flavonoid for rapid response to histamines.

Healthy Response To Histamines - Powerful antioxidant that supports your body's response to histamines & allergies, which helps ease and control occasional symptoms like itching, redness, runny nose, and excessive mucus for natural respiratory health.

Immune Support - Provides antioxidants to protect healthy immune cells from oxidative damage. Great potential to strengthen the immune system by promoting an effective response to harmful organisms to reduce the chances of feeling under the weather.

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. *

DAILY IMMUNE SUPPORT: Zarbee’s Kid’s Daily Immune Support* Syrup with real elderberry contains an excellent source of vitamin C; zinc & elderberry to help support your child’s immune system.* Can be added to your childs daily routine.

SAFE & EFFECTIVE: Our daily immune support syrup is made with concentrated real elderberry extract; known to contain nutrients; antioxidants; and flavonoids. Our children’s liquid is safe & effective for toddlers & kids ages 2+.

INGREDIENTS INSPIRED BY NATURE: Our great-tasting; natural elderberry flavor liquid is made from carefully selected ingredients inspired by nature—free of drugs; alcohol; artificial sweeteners; dyes; and gluten.

LIVER HEALTH SUPPORT: Milk thistle contains flavonoids called silymarin that have traditionally been used as support for liver health. Nature's Bounty Milk Thistle Dietary Supplements provide 250mg of Milk Thistle powder per capsule

HERBAL HEALTH: Nature's Bounty provides herbal products for a variety of health areas Nature's Bounty Milk Thistle is just part of the line of traditional supplements offered to support your health and your body

NATURE'S BOUNTY, BETTER OFF HEALTHY: Health-conscious people have trusted Nature’s Bounty products for decades Our dedication to quality, consistency, and scientific research has resulted in vitamins and nutritional supplements of unrivaled excellence

NATURAL IMMUNE SUPPORT - Cultivate your kids’ natural immune defenses with elderberry gummies for kids. Our triple kids immune support formula provides the perfect combination of real elderberry, vitamin c, and zinc.

TRADITIONAL WELLNESS REMEDY - Draw on centuries of wisdom with authentic black elderberry for kids! This berry has been safely used in folk medicine to boost immunity and fight off illness since the time of the Ancient Greeks.

YUMMY GUMMIES - Your child will love the delicious berry flavor of our elderberry gummies with zinc and vitamin c. No more bribing and bargaining to get them to take their vitamins… in fact, they’re so yummy they’ll be reminding YOU it’s time for their daily immune-boosting treat!

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.

GNC Vitamin C 1000 mg - Timed-Release If you’re looking for a convenient way to receive the benefits of immune support, you can add GNC Vitamin C 1,000 mg to your daily dietary supplement regimen. This protective antioxidant is essential for healthy bones, teeth, blood vessels and collagen. Plus, these vegetarian caplets also contain bioflavonoids and rose hips, all woven within a timed-release formula. Protective antioxidant vitamin provides immune support*

Dietary supplement contains 1,000mg of vitamin C, 25mg of citrus bioflavonoids complex 4:1 and rose hips powder per serving

Vitamin C with citrus extract flavonoids may have better absorption and retention in the body

Yes, we are taking a loss at this amount. Take advantage while we gain traction. We have been strictly selling to clinicians and homeopaths for years and we now bring Research Labs High Absorption Quercsalis Quercetin w/ Bromelain to this marketplace.

WHY YOU NEED OUR FORMULA - Quercetin is absorbed very poorly by itself meaning you are flushing the very expensive ingredients down the drain. Our proprietary formula and manufacturing process of Quercsalis Quercetin w/ Bromelain significantly enhances the bioavailability or amount your body can use.

The histamines that are generated by cells in response to allergic and inflammatory reactions are decreased by the anti inflammatory effects of quercetin. Subsequently, assisting in reducing inflammation-related aches and discomfort.

Immune Support: Essential-C and flavonoids help maintain a healthy immune system as well as healthy cell function.*

Highly Absorbable: Essential-C & flavonoids provides highly absorbable vitamin C and flavonoid compounds for synergistic antioxidant, immune and vascular integrity support.*

Antioxidant Support: Includes bioflavonoids, quercetin and rutin complement the role of vitamin C.*

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

NATURAL IMMUNE SYSTEM SUPPORT: Wiseceutical’s Organic Black Elderberry aids in shielding the body and naturally supports the immune system.

POTENT IMMUNE SUPPORTING INGREDIENTS: Elevate your immunity with Wiseceutical's Organic Elderberry Shield - packed with powerful, USDA organic certified ingredients. This potent supplement combines antioxidant-rich organic sambucus elderberry, immune-boosting natural Vitamin C from organic black currant, and the added strength of organic echinacea. With a powerhouse formula to support your immune system all year round.

RICH IN ANTIOXIDANTS: Containing high levels of flavonoids, our Organic Black Elderberry is rich in antioxidants that protect cells against damage caused by free radicals.

Powerful Immune Support - Several studies show Quercetin to play a powerful role in strengthening the immune system, especially after intense physical stress or exercise. Quercetin has been shown to help provide relief by supporting cells functions. Combined with Bromelain, this supplement helps strengthen the immune system and helps manage symptoms associated with seasonal changes.

The Master Flavonoid - Are you looking for superior immune support by one of the most well researched plant-based antioxidants? Our supplement features a high dose of Quercetin 1000 mg and 200 mg of Bromelain to maximize absorption and potency. Together they work synergistically to provide substantial improvements in antioxidant production. Quercetin has also been shown to support overall health.

Health Support - As we age, our body becomes more susceptible to various issues. Quercetin has been shown to provide Health support by improving vessel and flow throughout the body. Quercetin has also been shown to increase AMPK activation which provides a long list of benefits including reduced fat storage.

SOURCE OF ANTIOXIDANT: Our blend of Trans-Resveratrol, organic Green Tea, Quercetin, Grape Seed, and Acai Fruit Extract delivers anti-oxidants in every capsule. This antioxidant supplement helps to stop free radical damage and supports joint, healthy aging, heart, and vascular health. Resveratrol is an immune system enhancer that can help increase your energy and endurance.

ADVANTAGES OF Resveratrol: Resveratrol is a compound found in the skin of red grape seeds, juices, dates, berries, and red wine, with antioxidant properties that help to safeguard the heart and circulatory system, lowering cholesterol, and keeps you safe against clots which can cause heart attacks.

GOODNESS OF INGREDIENTS: Our ingredients come from sources rich in polyphenols -- Trans-Resveratrol from the PolygonumCuspidatum( Japanese Knotweed ) Root Extract, Green Tea Leaf Extract and Grape sed Extract full of potent polyphenols, Quercetin flavonoids from organic Sophora Japonica, and Acai Fruit Extract.

➕ 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!

US Grown Organic Wheatgrass Superfood Powder 16 Ounce, 100% Whole-Leaf, Premium Wheat Grass Supplement Organic, Vegan Friendly.

Rich in Fibers, Minerals (Potassium, Magnesium, Calcium and Zinc Vitamin), Immune Vitamins (Vitamins A, Vitamin B2, Vitamin B12, Vitamin C, Biotin), Protein, Essential Amino Acids (GLA, Arginine), Enzyme and Flavonoids, Premium Wheat Grass Powder Organic.

Rich in Antioxidants, Which Provides Supports to Colon, Heart and Overall Well Being.

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.

✔ 300MG ECHINACEA EXTRACT - As a natural and effective herbal supplement, echinacea has become the top choice for most people to boost the immune system. In the form of cute and delicious gummies, the echinacea immune support supplement effectively helps people experience its effects faster.

✔ 100MG ELDERBERRY EXTRACT - EnvyCure echinacea gummies are rich in potent elderberries, which contain procyanidins, polyphenols and flavonoids. Provides daily antioxidant support to help your body maintain its natural defenses. Take 2 echinacea elderberry gummies daily for optimal protection.

✔STRENGTHEN YOUR IMMUNE SYSTEM - Contains powerful antioxidant Vitamin C, essential trace mineral Zinc and turmeric extract for daily supplementation needs. Chewable echinacea elderberry with zinc and vitamin c for adults and kids, high potency and convenience!

Extended Supply for Long-lasting Immune Support – Each jar of our Purify Life sambucus elderberry gummies for kids brims with 60 servings, ensuring a continuous 2-month supply. This means your child gets sustained immune support, making our offering twice as beneficial as other leading brands on the market.

Triple-action Antioxidant Blend – Our elderberry chews go beyond the ordinary with a potent blend of elderberry, zinc, and vitamin C. This unique combination delivers a powerful punch of antioxidants and flavonoids, supporting your child's immune system to naturally combat common colds, coughs, sniffles, itchy throat, congestion, flu and maintain optimal health & respiratory function.

Safe & Enjoyable for All Ages – With a texture designed for easy chewing and swallowing, these gummies are ideal for infants, toddlers, kids, and even teenagers. This vegan, sambucus black elderberry isn't just immune support—it's also a treat that your entire family will appreciate, making daily supplementation a breeze.