Best Flavonoid Antioxidant Supplements Under $100 (2026)
We ranked supplements under $100 by value score using ingredient potency per serving, formulation/bioavailability, complementary cofactors, and label transparency
The Verdict
- Best Overall: Quercetin with bromelain, vitamin C and zinc - 1215mg per serving — for immune support: high 1,215 mg per serving with bromelain, vitamin C and zinc for combined absorption and antioxidant effect
- Best Value: Arymar Diosmin Plus 500 - Circulatory support supplement — Best for circulatory health: diosmin-centered formula designed to support vein function and overall circulatory comfort
Top Picks
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1
Best Overall Quercetin with bromelain, vitamin C and zinc - 1215mg per serving
for immune support: high 1,215 mg per serving with bromelain, vitamin C and zinc for combined absorption and antioxidant effect
Quercetin phytosome capsules with ginger, bromelain, zinc picolinate and vitamin C from organic sources. Supports immune health and antioxidant activity, with positive feedback on whole-food ingredients and ease of swallowing
- quercetin phytosome 500mg
- bromelain 200mg
- zinc picolinate 15mg
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2
Quercetin 1000mg vegan capsules (pack of 2) - Doctor Recommended Supplements
Best for vegans seeking potency: concentrated 1,000 mg vegan quercetin capsules with a simple ingredient profile for immune support
Quercetin 1000mg per serving in vegan capsules. Supports immune system and inflammation response. Customers note ease of swallowing and good value
- 1000 mg per serving
- vegan capsule format
- pack of 2
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3
Quercetin 250 mg with QuerceFIT (no bromelain & zinc) - 60 capsules
Best for targeted absorption: quercetin with QuerceFIT phytosome formulation that prioritizes improved bioavailability without bromelain
Quercetin 250 mg supplement with QuerceFIT for enhanced absorption. Supports immune response and may ease allergy symptoms; valued for high-quality ingredients and easy swallowing, with no bromelain or zinc
- phytosome-enhanced absorption
- Sophora japonica-derived quercetin
- no bromelain or zinc
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4
Best Value Arymar Diosmin Plus 500 - Circulatory support supplement
Best for circulatory health: diosmin-centered formula designed to support vein function and overall circulatory comfort
Diosmin-based circulatory support supplement with 500mg per tablet. May promote vein health and leg comfort. Customers note positive quality but mixed views on ingredient list
- high-dosage diosmin per tablet
- designed for circulatory health
- user-perceived quality
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5
Quercetin 500mg with Bromelain | Bioactive Phytosome Complex
Best plant-based phytosome option: 500 mg quercetin combined with bromelain and a bioactive phytosome complex for enhanced uptake
Quercetin 500mg capsules enhanced with phospholipid binding for improved absorption. Supports seasonal allergies and immune health with all-natural ingredients. Customer notes include effective absorption and some stomach sensitivity for a subset of users
- 20x higher absorption vs regular quercetin
- phospholipid-bound bioavailability
- bioactive phytosome complex
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6
Solaray Mega Quercetin with Bromelain, Vitamin C and Bioflavonoids
Best balanced formula: quercetin paired with bromelain, vitamin C and supporting bioflavonoids for broad antioxidant support
Antioxidant supplement featuring quercetin with bromelain, vitamin C and bioflavonoids to support immune function and heart health. Customers report improved allergy symptoms and respiratory health
- 600 mg quercetin per serving
- includes vitamin C and rutin
- customers report allergy relief
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7
Quercetin with bromelain, vitamin C, zinc & nettle
Best comprehensive blend: quercetin with bromelain, vitamin C, zinc and nettle for multi-target immune and inflammatory support
Quercetin supplement with a proprietary blend including bromelain, stinging nettle, vitamin C, D, and zinc. Supports immune system and helps with inflammation, per customer feedback
- quercetin 500mg
- bromelain included
- vitamin C and zinc combo
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8
Quercetin LipoMicel matrix softgels, 60 count
Best softgel absorption format: quercetin in a LipoMicel matrix softgel designed for improved delivery and heart-support focus
Quercetin supplement with lipomicel matrix for enhanced absorption. Supports immune and heart health; easy to take as a daily softgel. Customer note: effective for immune function and absorption
- lipomicel matrix for absorption
- supports immune function
- heart and capillary health support
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9
Quercetin with vitamin C and zinc - 6 month supply
Best long-supply immune option: quercetin paired with vitamin C and zinc formulated for ongoing antioxidant and immune maintenance
Quercetin + vitamin C + zinc with bromelain for immune support. Easy to swallow and gentle on the stomach, with additional vitamin D3 noted by customers as value-added
- quercetin with bromelain
- includes vitamin C and zinc
- vegan, gluten-free, non-GMO
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10
Diosmin 500 with Horse Chestnut, Butcher's Broom & Hesperidin - Dietary Supplement
Best multi-flavonoid circulatory formula: diosmin combined with horse chestnut, butcher's broom and hesperidin for vein and leg support
Dietary supplement with natural botanicals like diosmin, hesperidin, horse chestnut, red grape and butcher's broom. Supports general wellness and circulation; customers note effectiveness and quality
- combination of diosmin and hesperidin
- includes horse chestnut and butcher's broom
- plant-based antioxidants