Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant's customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
Best Choice NOW 
NOW Foods Citrus Bioflavonoids - 100 Count (Pack of 1) Citrus Bioflavonoids are powerful polyphenolic compounds found in lemons, limes, oranges, grapefruits, and tangerinesBest Value LIPO-FLAVONOID 
Lipo-Flavonoid Plus Ear Health Supplement | Most Effective Over the Counter Tinnitus Treatment | #1 ENT Doctor Recommend #1 DOCTOR RECOMMENDED: considered by ENTs to be the most effective over-the-counter solution to reduce ear ringing.LIPO-FLAVONOID 
Lipo-Flavonoid Plus Inner Ear Health Caplets -90ct If you have tinnitus, or ringing in the ears, you're not aloneNOW 
NOW Supplements, Citrus Bioflavonoids 700mg, 100 Capsules Supports Immune System*VAITE 
Citrus Bioflavonoid Complex Supplement 1000mg – Antioxidant & Wellness Gummies with Plant-Based Bio-Flavonoids – Sugar-F ANTIOXIDANT BENEFITS – Citrus bioflavonoids are plant-derived compounds with valuable antioxidant properties. They proviNatural Factors 
Natural Factors - Citrus Bioflavonoids 650mg, Support for the Body's Use of Vitamin C, 90 Capsules LIPO-FLAVONOID 
Lipo-flavonoid Plus Caplet 100 Count Helps Circulation in the Ear by Lipo-Flavonoid manufacturer: Lipo-flavonoid37% Off THORNE Thorne Research - Enhanced Blend Vitamin C Capsules with Flavonoids - 90 Capsules Offers 90 high-quality Vitamin C capsulesMaple Lifesciences Bee Propolis Extract (60% Propolis Flavonoids) - 60 Vegan Capsules - 400mg MAYN Apigenin 100mg Capsules – Chamomile Flavonoid Compound – 90 Capsules – Vegan, Non-GMO – Dietary Supplement by MAYN 100MG APIGENIN PER CAPSULE: Each capsule provides 100 mg of apigenin, a naturally occurring plant flavonoid.THE LAB BY BLANC DOUX THE LAB BY BLANC DOUX Green Flavonoid 2.5 Toner Pads (90 pcs.) - Gentle Soothing & Calming, Infused with Flavonoids and An ultra-soothing pad that delivers an excellent calming effect to sensitive, irritated skin.Generic Liposomal Luteolin, Maximum Absorption, Potent Flavonoid, Non-GMO, Gluten Free Get Significantly Higher Absorption Rates - Liposome technology is revolutionizing the way we take Luteolin by successfuLife Extension Life Extension Super-Absorbable Soy Isoflavones, 60 vegetarian caps Life Extension Super Absorbable Soy Isoflavones, 60 vegetarian capsErbology
100% Organic Bergamot Juice 250ml - Supports Immunity and Collagen Production - Rich in Vitamin C and Bioactive Flavonoi 100% organic Calabrian bergamot juice, superior qualityVAITE Apigenin Supplement 150mg - Chamomile Extract Vegan Gummies with Flavonoids, Bioflavonoids & Polyphenols - Plant-Based R POWERFUL APIGENIN BLEND — Each gummy delivers 150mg of pure apigenin combined with natural chamomile extract and flavonoEclectic Institute Eclectic Institute Quercetin Flavonoid Complex 3.2 Oz (90 G) Powder Double Wood Supplements Double Wood Supplements Luteolin Supplement 100mg Servings (120 Capsules, Manufactured in The USA) Potent Polyphenols Fl POTENT POLYPHENOL ANTIOXIDANT - Luteolin is a potent antioxidant primarily found in vegetables and some fruitsBulkSupplements BulkSupplements.com Cocoa Extract Powder - Polyphenols Supplement - Circulation Supplements Flavonoids Supplements - Sug 🧠 Supports Brain Health - Cocoa Bean is a rich source of antioxidants which are essential to good health.* One of thisBulkSupplements BulkSupplements.com Cocoa Extract Powder - Circulation Supplements - Flavonoids Supplements - Sugar Free Cocoa Powder - 🧠 Supports Brain Health - Cocoa Bean is a rich source of antioxidants which are essential to good health.* One of thisCodeage Codeage Liposomal Apigenin Supplement, 3-Month Supply, Daily Flavonoid Chamomile Extract, Liposomal Phospholipid Complex Apigenin - 3-Month Supply: Codeage Liposomal Apigenin Supplement Delivers 50 Mg Of Apigenin Extract Per Capsule, SourcedLABO Nutrition LABO Nutrition Brazilian Green Propolis Ultimate – Propolis Extract with 28mg Artepillin C and 5% Flavonoids – Natural B Not all propolis are equal – Brazilian green is the gold standard: Propolis is a natural resinous substance produced bySource Naturals Source Naturals - NutraDrops Quercetin Seasonal Bioflavonoid Complex - 4 fl. oz. Quercetin is a unique bioflavonoid that has demonstrated the ability to inhibit histamine release from immunecells, accoSmarterVitamins Smarter Raw Whole Food Vitamin C Natural Immune Support from Berries, Premium Antioxidants, Bioflavonoids & Polyphenols, SMARTER Vitamin C is Made with 11 Premium Raw & Natural Whole Food Berries such as Acai, Acerola, Amla, Cranberry, Goji,VAITE Rutin Supplement 500mg - Sophora Japonica Extract with Bioflavonoids - Antioxidant & Wellness Chewables for Daily Use - GummiesBrooke Bond Brooke Bond Red Label Tea 1 kg Pack, Strong Chai from the Best Chosen Leaves, Rich in Healthy Flavonoids - Premium Powde Material_features: VegetarianBulkSupplements BulkSupplements.com Cocoa Extract Powder - Sugar Free Cocoa Powder - Circulation Supplements - Flavonoids Supplements - 🧠 Supports Brain Health - Cocoa Bean is a rich source of antioxidants which are essential to good health.* One of thisSwanson Swanson Chinese Skullcap - Herbal Supplement Promoting Relaxation & Sleep Support - Flavonoid Formula to Help Soothe Ner RELAXATION SUPPORT: Chinese Skullcap has been traditionally used for thousands of years to help calm the nerves. This prAVIMEE HERBAL AVIMEE HERBALJavakusum Hibiscus Hair Oil | For Soft & Silky Texture | Loaded with Vitamin C, Flavonoids, Amino Acids, Mu Enhanced Hair Thickness: Thicker and fuller-looking hair for a voluminous and healthy appearance.Micro Ingredients Micro Ingredients Organic Broccoli Extract Powder, 1 Pound (454g), Rich in Fiber, Immune Vitamin C and Flavonoids, Green USDA Organic Broccoli Sprout Powder, 1 Pound (16 Ounce), No GMOs and Vegan Friendly.Nature's Way Nature's Way Premium Extract Standardized Cinnamon 8% Flavonoids, 60 Vcaps Cinnamon for healthy glucose metabolism50% Off Swisse Swisse Beauty High Strength Biotin 5,000 Mcg 100 Tablets Herb-free formulaANTHEL ANTHEL 125MG 6TAB Zhou Nutrition Elder-Mune Sambucus Elderberry Gummies - Antioxidant Flavonoids, Immune Support Gummy Vitamins, Zinc Supplement & Vitami 3-In-1 immune boost. Elder-mune combines Sambucus elderberry, a potent antioxidant extract that helps support immune sysPure Synergy Pure Synergy Pure Radiance C (90 Capsules) 100% Natural Vitamin C from Fruits & Berries, Non-GMO 100% natural vitamin C from organic berries including camu camu, acerola & amlaNutricost Nutricost Soy Isoflavones 150mg, 180 Veggie Capsules - Gluten Free, Non-GMO, Vegetarian Friendly 150mg of Soy Isoflavones Per CapsuleVitamatic Vitamatic 2 Pack Milk Thistle Gummies - 3000 mg Equivalent - Liver Detox & Anti Oxidant Health - Min. 80% Silymarin Flav uNleaSH Rhizoflora Purpinator, 4 Liter flavonoid, terpenoid, and Resin Jovvily Jovvily Motherwort Herb Extract - 1lb - Non-GMO - Antioxidants - Flavonoids Jovvily Motherwort Herb Extract is a verified Non-GMO productGIVOL GIVOL (by Logic Remedy) Organic Elderberry Mist-Sambucus Nigra (Extra Strength) Liquid Extract for Kids & Adults - Immun Suggested Use: 2 sprays daily between mealsNutra Wave Nutrawave High Potency GABA Supplement – 650mg per Serving | Gamma-Aminobutyric Acid | 120 Vegan, Non-GMO, Gluten-Free C GABA (GAMMA-AMINOBUTYRIC ACID) FORMULA - Contains GABA, a naturally occurring amino acid, provided in capsule form for cEarthborn Elements Earthborn Elements Soy Isoflavones (200 Capsules) Bone Support, Cardiovascular Support* Earthborn Elements Soy Isoflavones capsules are a plant based supplement of soy from soy beansMicro Ingredients Organic Pea Protein Powder, 1KG (2.2 Pounds), Organic Protein from Plants, Easy to Digest, Rich in Essential Amino Acids Organic Pea Protein Isolate Powder, 32 Ounces (2 Pounds), No GMOs and Vegan Friendly.Amen Amen Fruits, Daily Fruits Vitamins Supplements, Raw Whole Fruits Multivitamin Capsules, Berries Vegan Blend, Antioxidant Raw Whole Fruit Extracts All-in-One Vegan Blend: Amen Fruits vitamins supplement contains over 20 whole food powdered exRenue By Science RENUE Liposomal Quercetin Supplement 150 mg - Bioavailable Formula for Increased Absorption – 90 Capsules POWERFUL ANTIOXIDANT - Quercetin, a flavonoid found in various fruits and vegetables, demonstrates potent antioxidant prWebber Naturals Webber Naturals Soy Isoflavones 50mg 90 Capsules Non GMO soybeans.26% Off REACTONZ REACTONZ 5 in 1 Immunity Plus – Immune Support & Antioxidants Supplement – Vitamin C, Zinc, Manuka Honey, Rosehip & Prop At REACTONZ, we formulated Immunity Plus Effervescent Tablets to provide a well-balanced combination of essential nutrieBulkSupplements BulkSupplements.com Quercetin Dihydrate Powder - Antioxidants Supplement - Quercetin 500mg Supplement - Pure Quercetin S Clean & Pure Powder. No Fillers.Aracaria Biodynamic Farm Vitamins, Minerals, Amino Acids, Fatty Acids, Flavonoids: The Building Blocks of Perfect Health Source Naturals SOURCE NATURALS Quercetin Nutradrops, 2 Fluid Ounce Is a bioflavonoid similar to rutinCodeage Nanofood Liposomal Quercetin Phytosome Liquid Drops Supplement, Vitamin E, Phospholipid, Vegan, Non-GMO, 3 Months Supply Liposomal Quercetin: Codeage Nanofood Liposomal Quercetin Phytosome features a proprietary quercetin blend and comes witNOW NOW Foods, Organic Raw Cacao Powder, with Polyphenols and Flavonols, Sun-Dried, Intensely Rich Flavor, 12-Ounce Sun Dried, not RoastedGeneric Capsaicin, Support Intestines,240count(2),3pcs 【Easy To Operate】Nature's Care Australia Nature's Care Pro Series Propolis 3800mg 2 x 180 Capsules Nature's Care Pro Series Propolis 3800mg 2 x 180 CapsulesBrieofood Brieofood Organic Amla 1500mg, 45 Servings, Vegetarian, Gluten Free, 90 Vegetarian Tablets Organic Certified By One Cert InternationalForestLeaf Quercetin 500mg with Bromelain, Vitamin C and Stinging Nettle – Advanced Sinus and Allergy Supplement – Natural Vegetabl Daily Dietary Supplement: Uniquely formulated using a blend of quercetin and bromelain, this supplement from ForestLeaf23% Off Natural Factors Natural Factors Quercetin Lipomicel Matrix 60 Capsules Contains Unique Antioxidants To Support Your Blood Vessels And Immune System;* Formulated With Lipomicel Technology ThatALLICINMAX ALLICINMAX Allicin Max 100% Pure Allicin 90vcaps (2 Pack) It Dissolves For Easy Absorption Into The Blood StreamGeneric Super Folinic Acid - Metabolism,Immune Support， Supports Heart Health Normal Language Development - Gluten-free, dairy-f Efficient and active leucovorin helps the body’s metabolismIndependently published FLAVONOIDS IN CANCER: FLAVONOIDS Swanson Swanson Apigenin Prostate Health Supplements Nerve Health 50 mg 90 Capsules Apigenin Supplement: Apigenin Is Quickly Gaining Popularity For Its Potential To Promote Cellular Health Within Tissues,33% Off Swanson Swanson Naringin 500 Milligrams 60 Capsules Grapefruit Antioxidant ProtectionJarrow Formulas Jarrow Formulas Quercetin 500 mg - Supports Antioxidant Status, Immune Health Support, Heart & Cardiovascular Health Sup Supports Antioxidant Status - Quercetin is a phenolic antioxidant found in green leafy vegetables, onions, apples and chTenmido Quercetin Extract Capsules with Vit C, Elderberry, Bromelain, Ginger, Echinacea, Pepper - 60 Capsules, 2 Months Supply ❤️ Premium Formula: Tenmido Quercetin Capsules combination of the highest quality quercetin extract powder with 8 more hGeneric Pentadecanoic-Acid,C15:0,Altitude Sheep Milk Sourced,Supports Immune Health Actively promotes metabolic function, balance and long-lasting physical vitality.Healthy Origins Healthy Origins Quercetin Phytosome (Quercefit) 500 mg, Immune Support, Respiratory Support, Vegan, Non-GMO, 120 Veggie Supports immune health12% Off CARE 4 HARMONY (3Pack) Quercetin Gummies - Quercetin with Bromelain Vitamin C + Zinc Vitamin D3 – Chewable Quercetin 900mg Supplements 🥇【 3 Packs 】- Vitamin C Vitamin D3 - Proudly formulated and made by professionals in the USA. Enhanced with antioxidantGeneric Capsaicin Power Immune Support With Vitamin 【Easy To Carry】NusaPure French Maritime Pine Bark Extract 300mg 200 Veggie Capsules (Non-GMO & Gluten Free) Supports Heart Health, Circulatory H 27% Off Healthy Care Healthy Care High Strength Propolis Capsules - Antioxidant Capsules for Immune Support and Cellular Health - Premium Qua The information below is per-pack only11% Off LongLifeNutri White Mulberry Leaf Extract 2,500mg 200 Vegetarian Capsules | Pure Natural Herbal Vitamin Powder Supplement ✔ PREMIUM WHITE MULBERRY: LongLifeNutri White Mulberry provides high potency levels. Our product goes through research tCarlyle Tart Cherry Capsules | 10,500 mg | 200 Count | Max Potency | Non-GMO, Gluten Free | Tart Cherry Juice Extract | by Carly SUCCULENT FRUIT: Get all the amazing benefits of Tart Cherry without the excess sugar from juice!Natural Factors Natural Factors Biaoctive Quercetin EMIQ 50 mg 60 Vegetarian Capsule Gegoup Kaempferol 100mg 60 Count Bottle Proudly manufactured in the USA in a GMP and FDA compliant facilityRenue By Science RENUE By Science Hesperidin (Liposomal) Supplement 300mg - Bioavailable Formula for Increased Absorption - 90 Capsules Nutricost Nutricost Quercetin 800mg, 120 Capsules with Bromelain - 60 Servings, Veggie Capsules, Non-GMO & Gluten Free 800mg of Quercetin & 165mg of Bromelain Per ServingSERS de flavonoides: Aplicaci????n de la espectroscop????a Raman sobre superficies met????licas nanoestructuradas al est Codeage Nanofood Wonder-C Liposomal Vitamin C Liquid Supplement Vitamin D3, E & Zinc, Rose Hips, Quercetin & Echinacea, Non-GMO LIQUID VITAMIN C: Nanofood Wonder-C offers 1000 mg of vitamin C encapsulated in liposomes. Easy to drink or pour in a taLAP Lambert Academic Publishing New flavonoids and secoiridoids from Centaurium spicatum ICON Group International, Inc. The 2027-2032 World Outlook for Anthocyanin Flavonoids CRC Press Flavonoids:Chemiostry, Biochemistry And Applications [Paperback] [Jan 01, 2016] NA ICON Group International, Inc. The 2027-2032 World Outlook for Flavonoids Generic Capsaicin Complex, 12 Herbal Vitamins Formula, Metabolism & Weight Management Support, Plant-Based, Vegetarian, Non-GMO Capsaicin complex, 12 natural herbs and vitamins scientifically formulatedJenny Stanford Publishing Flavonoids: Supplements for Health and Well-Being CRC Press Flavonoid Metabolism Academic Press Techniques of Flavonoid Identification Neurogan Neurogan idine Supplement - 10mg - 99% Pure idine - Clinically Tested - 3rd Party Tested - Made in The USA Boost idine and Autophagy: idine plays an important role in maintaining the health and rejuvenation of your cells. WithCARE 4 HARMONY (2 Pack) Quercetin Gummies - Quercetin with Bromelain Vitamin C + Zinc Vitamin D3 – Chewable Quercetin 900mg Supplements 🥇【 2 Packs】- Vitamin C Vitamin D3 - Proudly formulated and made by professionals in the USA. Enhanced with antioxidantsICON Group International, Inc. The 2026-2031 World Outlook for Anthocyanin Flavonoids Flavonoids: A Medical Dictionary, Bibliography, And Annotated Research Guide To Internet References ICON Group International, Inc. The 2026-2031 World Outlook for Flavonoids Swanson Swanson Premium Hawthorn Berries 565mg 250 Capsules Antioxidant Flavonoids And Other Nutrients Within Hawthorn Berries May Help Promote Blood Flow And Support Circulation.CRC Press Introduction to Flavonoids ICON Group International, Inc. The 2023 Report on Flavonoids: World Market Segmentation by City Springer Flavonoids: Extraction, Characterization, and Therapeutic Applications: Traditional Medicines to Modern Cancer Treatment ICON Group International, Inc. The 2023 Report on Anthocyanin Flavonoids: World Market Segmentation by City Chapman and Hall The Flavonoids Routledge The Flavonoids Advances in Research Since 1986 Nature's Truth Black Elderberry Gummies for Kids | 50 Count | with Zinc and Vitamin C | Vegan, Non-GMO & Gluten Free Supplement | by Na ELDERBERRY GUMMIES FOR KIDS: Plus Vitamin C & ZincSTMNA Bioactives Healthspan Supplement for Longevity - Turmeric, Resveratrol, Ashwagandha | Natural Anti-Inflammatory, Antioxidant & Adap Natural Longevity Supplement for Healthy Ageing: A premium daily longevity supplement formulated to support healthy agei