Best Lemon Flavonoid Vitamin Supplements in 2026

Daisy
Last Updated: Jul 18, 2026

At a Glance: Our Top Picks for Lemon Flavonoid Vitamin Supplements

NOW Supplements, Quercetin with Bromelain, Balanced Immune System*, 240 Veg Capsules
#TOP1
Now Supplements, Quercetin With Bromelain, Balanced Immune System*,
9.9
PM SCORE
NOW Supplements, Vitamin C-1,000 with 100 mg of Bioflavonoids, Antioxidant Protection*, 100 Veg Capsules
#TOP2
Now Supplements, Vitamin C-1,000 With 100 Mg Of
9.9
PM SCORE
Quercetin with Vitamin C and Zinc - Quercetin 500mg - Quercetin with Bromelain - Zinc Quercetin - 120 Veggie Caps. Quercetin Supplements + Vitamin D3 (Non-GMO, Gluten-Free, Vegan) 2 Month Supply
#TOP3
Quercetin With Vitamin C And Zinc - Quercetin
9.8
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Lemon Flavonoid Vitamin Supplements of 2026

Now Supplements, Quercetin With Bromelain, Balanced Immune System*, 240 Veg Capsules

NOW
733739030719
3.13 X 3.13 X 6.25 Inches
0.59 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

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

GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the now manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).

Packaged in the USA by a family owned and operated company since 1968

During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.

Now Supplements, Vitamin C-1,000 With 100 Mg Of Bioflavonoids, Antioxidant Protection*, 100 Veg Capsules

NOW
0690
2.50 X 2.50 X 4.44 Inches
0.22 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
WooHoo Natural 9.89

Features

Ingredients: Cellulose (capsule), Stearic Acid (vegetable source), Magnesium Stearate (vegetable source) and Silica

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.

Serving Size: 1 Veg Capsule; Servings Per Container: 100

Quercetin With Vitamin C And Zinc - Quercetin 500Mg - Quercetin With Bromelain - Zinc Quercetin - 120 Veggie Caps. Quercetin Supplements + Vitamin D3 (Non-Gmo, Gluten-Free, Vegan) 2 Month Supply

GADE NUTRITION BOOST YOUR HEALTH
GNQ721
2.00 X 2.00 X 4.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Gade Ventures 9.93

Features

✔️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*

✔️DISCOVER OUR QUERCETIN- RICH SUPPLEMENTS* keep you and your family strong and healthy* The ideal method to effectively and quickly boost your quercetin intake is to take 2 capsules daily..*Our capsules are made with non-GMO, gluten-free, sugar-free, no stimulants, no binders, no filters, no allergens, no chemical or synthetic substitutes.*

✔️SAFE STANDARD QUALITY: Our products are manufactured in the USA with all-natural, fast-dissolving veggie capsules. Made in an FDA-registered laboratory that is GMP certified. We hold ourselves to high standards of 100% natural purity & Potency. Our pills are made with non-GMO, gluten-free, sugar-free, no stimulants, no binders, no filters, no allergens, no chemical or synthetic substitutes.

Research Labs Quercsalis™ Quercetin W/Bromelain,120 Veg Capsules. High Absorption Formula. Supports Cardiovascular, Immune, Anti-Inflammatory, Anti-Oxidant Health

RESEARCH LABS
RLQ1-1
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Research Labs 9.93

Features

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.

HEALTHY CARDIOVASCULAR & IMMUNE SYSTEM FUNCTION: Quercetin, a naturally occurring free radical scavenger, helps a balanced immune system. Quercetin has been shown in laboratory experiments to support healthy respiratory function. Quercetin supports cardiovascular health via its role in the inhibition of LDL oxidation

Research Labs' owner believed in creating the highest quality supplements everyone could afford. We take no shortcuts and use no fillers to create the highest quality vitamins for the best price you can find.

#TOP5

Now Supplements, Respir-All™ With Quercetin, Vitamin C, Nettle Extract And Bromelain, Respiratory Support*, 60 Tablets

NOW
3282
1.94 X 1.94 X 4.13 inches
0.23 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

UNIQUE COMBINATION: Includes key vitamins, minerals, and herbal extracts that nutritionally supports healthy respiratory functions.

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

RESPIRATORY SUPPORT SUPPLEMENT: Features quercetin, vitamin C, nettle extract, and bromelain in an oval tablet.

VEGAN: Take three tablets daily on an empty stomach (or with food for sensitive stomachs).

GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).

Packaged in the USA by a family owned and operated company since 1968.

During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.

Now Foods Citrus Bioflavonoid, 100 Count (Pack Of 1)

NOW FOODS
610
6.00 X 5.00 X 4.00 Inches
0.21 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
natureschapter 9.51

Features

Bioflavonoid 700mg 100 caps by now foods

NOWSUPPVitamin-Vitamins- 100CAPS

Now foods product upc : 733739006103

During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.

Quercetin Liquid Drops & Zinc Liposomal Bundle By Maryruth's | Immune Support | Immune Defense | Inflammation Support | Cellular Health | Skin Care Supplement, Vegan, Non-Gmo, Gluten Free.

MARYRUTH ORGANICS
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MaryRuth Organics, LLC 9.95

Features

Bundle & Save: Our best selling immune products are now a bundle! Quercetin | Sugar Free | Liquid Quercetin 500mg Immune Support for Adults & Kids | Inflammation Support Supplement | Immune Defense | Cellular Health | Vegan | Non-GMO | Gluten Free | 4 Fl Oz | Zinc Supplements with Vitamin E, Immune Support Liquid Zinc Supplement for Adults, Immune Defense Zinc Vitamins, Skin Care Supplement, Vegan, Non-GMO, Gluten Free, No Sugar Added, 15.22 Fl Oz

Quercetin 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.

Ionic Zinc: Support healthy immune function with this easy-to-take Liquid Zinc. The optimal concentration of zinc in the body is necessary for healthy immune function, & homeostasis of this mineral plays a role in supporting the health of your body’s macrophages, an important component of your innate immune system.

Multiple Benefits: Quercetin is a bioflavonoid found in plants, including citrus, berries, leafy vegetables, herbs, spices, legumes, tea, and cocoa. It also aids in the seasonal immune response and may help support histamine levels. Support inflammation health, normal cardiac function, cellular integrity, and more! | Zinc is a mineral, but the human body is unable to synthesize it! It is needed for several bodily processes including immune function, certain gene expression, DNA repair, & more.

For Most Lifestyles: Both products are Non-GMO, Vegan, Dairy Free, Gluten Free, Wheat Free, Nut Free, Soy Free, Corn Free, Nightshade Free, Sugar Free Made in a GMP Facility. Bariatric Friendly, Celiac Friendly, Keto Friendly, Kid Friendly. Quercetin Liquid Drops was formulated for ages 4+.

Vitamedica | Recovery Support Program | Natural Post Surgery Support Supplements | Wound Healing | Pain Relief | Anti-Inflammatory | Vitamin A, Vitamin C, Bromelain, Quercetin, & Zinc | Gluten Free

VITAMEDICA
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
VitaMedica 9.90

Features

Doctors Choice: Surgeons love VitaMedica’s Recovery Support Program with wound healing supplements and anti inflammatory botanicals for their patients’ post surgery care. Designed to help you heal fast post op and for injury recovery.

Physician Formulated: Our clinical grade pre and post surgery supplements were created by an anesthesiologist to help his surgery patients heal fast post op using the best of science and nature combined.

Not Just For Plastic Surgery Recovery: Elective or not, your body’s need for extra support after a procedure is the same. Get the best pre and post surgical kit for wound healing support after tummy tuck, rhinoplasty, and all other types of surgery.

Simplify Your Healing: Plastic surgeons’ best kept secret can now be yours with this easy 1 month recovery program. A safe, natural, and effective solution trusted by Beverly Hills doctors and thousands of other professionals for 25 years.

Natural Recovery Experts: From our surgery vitamins for deep wound healing to arnica and bromelain, add our solutions to your plastic surgery recovery supplies and feel better faster. Ideal with VitaMedica’s Probiotic 8 and SurgiLax for digestive support.

Top 10 flavonoid vitamin supplements Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Now 3
Gade Nutrition Boost Your Health 1
Maryruth Organics 1
Now Foods 1
Research Labs 1
Vitamedica 1

Top 10 flavonoid vitamin supplements Brands Pie Chart


We've carried out a comprehensive analysis of 28,186 reviews on flavonoid vitamin supplements, using our selection criteria to identify the best options in the health & household products. Our findings reveal that most customers typically select flavonoid vitamin supplements priced around $29.00, with top brands including jarrow formulas, now, garden of life, lipo-flavonoid, nature made, hi well pure & natural new zealand, now foods, immority and wild apiary and life seasons

Our team of expert editors reviewed these high-quality items and handpicked the top 8 flavonoid vitamin supplements for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the health & household products category. These include amazon.com, woohoo natural, tiger health, seve star shop, natureschapter, lovenshop, hi well, royal apis global limited and swapma and vitamedica .

We are dedicated to assisting our users in finding the right supplements Products based on their needs, saving them considerable time when choosing which flavonoid vitamin supplements to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.