Flavonoid supplements offer a concentrated dose of these powerful plant compounds, known for their antioxidant and anti-inflammatory properties. Choosing the right supplement can be crucial for effectively supporting your overall health and well-being. Understanding key factors will help you make an informed decision that aligns with your health goals.
- Supports Inner Ear Balance: Formulated to support inner ear health & balance using targeted nutrients associated with healthy equilibrium & spatial orientation
- With Ginkgo Biloba & B Vitamins: Includes ginkgo biloba, vitamin D, & a vitamin B complex to support circulation & overall ear health
- Designed for Daily Balance Support: Helps support feelings of balance & stability as part of a consistent daily supplement routine
- Convenient Once-Daily Caplet: Easy-to-take formula designed for simple, once-daily use - free from gluten, dairy, & artificial colors
- Trusted Ear Health Brand: From the makers of LIPO, a long-standing brand focused on inner ear & hearing support
- Targeted Ear Ringing Support: Designed to support inner ear health & help manage symptoms associated with ear ringing using a clinically studied nutrient blend
- Lemon Bioflavonoid Complex: Includes bioflavonoids plus vitamins C, B1, B2, B6, & B12 to support healthy circulation & auditory system function
- Supports Inner Ear Health: Formulated to promote proper inner ear function & overall ear wellness as part of a daily supplement routine
- Daily Use for Best Results: Take 2 caplets 3x daily for at least 60 days to support consistent nutrient intake & optimal results
- Trusted, Long-Standing Formula: Used for decades as a nutritional approach to support ear health & circulation with a targeted vitamin blend
- SUPPORTS IMMUNE SYSTEM*: Among the many attributes of bioflavonoids is their ability to support a healthy immune system response and to promote the maintenance of a healthy vascular system*
- WITH ASCORBIC ACID AND BIOFLAVONOIDS: This product is enhanced with vitamin C for its synergistic effect*
- CLASSIFICATIONS/CERTIFICATIONS: Non-GMO, Kosher, Soy Free
- GMP Quality Assured: A-rated, third-party certification means that every aspect of the NOW manufacturing process has been examined. Our in-house laboratories are ISO/IEC accredited for laboratory testing including for stability, potency and product...
- Founded in 1968 by Elwood Richard, NOW is one of the largest independent, family- and employee-owned manufacturers of natural products
- Targeted Ear Ringing Support: Formulated to support inner ear health & help manage symptoms associated with ear ringing using a clinically studied nutrient blend
- Clinically Studied Ingredients: Backed by decades of use with lemon bioflavonoids plus vitamins C, B1, B2, B6, & B12 to support circulation & auditory function
- Supports Inner Ear Health: Designed to promote proper inner ear function & overall ear wellness as part of a daily supplement routine
- Daily Use for Best Results: Take 2 caplets 3x daily for at least 60 days to support consistent nutrient intake & optimal results
- Trusted Brand with Guarantee: From a long-standing ear health brand - if you don’t experience results after 60 days as directed, request a refund with proof of purchase
- Relief for Ringing Ears: Provides targeted support for persistent ringing, buzzing, & noise sensitivity, helping promote overall inner ear health
- #1 Doctor Recommended Brand: Trusted by ENT specialists as a leading over-the-counter supplement for supporting ear ringing & inner ear function
- Clinically Studied Formula: Contains lemon bioflavonoids plus vitamins C, B1, B2, B6, B12, & calcium to support healthy circulation & auditory system function
- Daily Support Routine: Designed for consistent use, take 2 caplets 3 times daily for at least 60 days to support optimal results
- 60-Day Satisfaction Guarantee: If you don’t experience improvement when used as directed, you can request a full refund with proof of purchase
- Does this help with vitamin C absorption? Yes — Swanson Citrus Bioflavonoids Complex contains compounds known as bioflavonoids, which aid the absorption of vitamin C for enhanced immune benefits.*
- Does this support the immune system? Yes — this dietary supplement offers powerful antioxidant support and aids vitamin C absorption to encourage immune health.*
- How potent is this formula? Each capsule delivers a standardized 50% bioflavonoid content for consistent quality and effectiveness in every serving.*
- What ingredients are included? Our supplement includes bioflavonoids from bitter orange, along with rose hips extract and acerola cherry for a comprehensive formula.
- Can I trust the quality of this supplement? Swanson is a name you can rely on — our products are manufactured to the highest standards, ensuring you get trusted quality, every time.
- Immune Support: Vitamin C formulated with natural citrus bioflavonoids for added antioxidant benefits resulting in better cellular protection against free radicals within the body*
- Healthy Skin: Promotes collagen production, which enhances skin, nail, and hair health and supports healthy tissue and cartilage formation*
- Detox Support: Promotes the body's natural ability to eliminate toxins and benefits liver health by helping increase glutathione and other potent antioxidants*
- Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants
- Trusted: Thorne is trusted by 100+ professional sports teams and the #1 most recommended clinical brand by consumers and health-care practitioners (Based on a 2026 independent survey of US supplement consumers and health-care practitioners)
- Ester-C Absorption: Ester-C & Flavonoids is a form of vitamin C providing superior absorption and retention for immune support, making it a potent antioxidants supplement*
- Antioxidants: Bioflavonoids quercetin and rutin, as part of our antioxidants supplement, helps to support your immune system and antioxidant defenses*
- Immune Support: Ester C supports a healthy immune system and cell function, an essential part of your immune and antioxidants supplement routine*
- Pure Quality: Our supplements are made with premium ingredients sourced from trusted suppliers and guided by nutritional experts, then manufactured and tested to verify potency and purity
- Pure Difference: What we leave out matters, too; Pure Encapsulations products are FREE FROM common allergens, artificial or unnecessary ingredients, and GMOs
- POWERFUL ANTIOXIDANT DEFENSE & SYNERGY: Go beyond basic support with our multi-faceted, plant-powered antioxidant blend. Quercetin and Rutin are renowned for their ability to neutralize free radicals and provide defense* against* oxidative* stress*. When...
- FORMULATED TO SUPPORT CIRCULATORY FUNCTION: Building on our precisely balanced formula, our premium citrus bioflavonoid supplement features a citrus bioflavonoid complex standardized to 50% hesperidin, providing 500 mg of hesperidin per serving. This...
- 100% NATURAL 3-IN-1 SCIENTIFICALLY BALANCED FORMULA: Unlike synthetic alternatives, Clenoriko 3-in-1 formula is crafted from pure, non-artificial sources: a 1000mg citrus bioflavonoid complex (standardized to 50% Hesperidin) from six citrus fruit...
- SIMPLE & CONVENIENT DAILY ROUTINE: Designed for your busy life, each serving includes just 2 small, simple-to-swallow veggie capsules. With 60 servings per bottle (120 capsules total—a full 60-day supply), a single purchase supports your consistent...
- PREMIUM QUALITY YOU CAN TRUST: At Clenoriko, we are committed to excellence, purity, and your complete satisfaction in every bottle of our bioflavonoids supplements. We adhere to strict quality standards to ensure every capsule is free from gluten, GMOs...
- CITRUS BIOFLAVONOIDS: Strong source of antioxidants discovered in nature from citrus fruits
- COMPLEX FORMULA: Delivers a powerful 1,500 mg bioflavonoid complex per serving in coated caplets
- EXPERTLY CRAFTED: Our premium formula is backed by our commitment to purity and potency
- HORBAACH MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
- VEGETARIAN FORMULA: Naturally free of Gluten, Wheat, Artificial Flavor, Preservatives & Non-GMO
This article is part of our complete guide Vitamins & Supplements — browse all our comparisons and buying guides.
Last update on 2026-09-06 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Flavonoid Vitamin Supplements
Key Factors When Choosing a Flavonoid Supplement
When selecting a flavonoid supplement, consider the following:- Source and Purity: Look for supplements derived from high-quality, natural sources like fruits, vegetables, or specific botanicals. Check for third-party testing certifications (e.g., NSF, USP) to ensure purity, potency, and absence of contaminants. This verification provides an extra layer of confidence in the product's quality.
- Type of Flavonoid and Bioavailability: Different flavonoids offer varied benefits (e.g., quercetin, rutin, hesperidin). Research which types align with your health objectives. Additionally, consider the supplement's bioavailability – how well your body can absorb and utilize the compound. Look for formulations designed for enhanced absorption if available.
- Dosage and Form: Flavonoid supplements come in various forms, including capsules, tablets, and powders. Ensure the dosage is clearly stated and aligns with recommended daily intake or the specific needs you are addressing. It's often beneficial to start with a lower dose and gradually increase as needed, consulting with a healthcare professional.