Supplement Facts
Serving Size:  1 Vegetarian capsule
Amount Per Serving
%DV
Bio-Quercetin® Proprietary Blend providing 35% quercetin (10 mg) [from Japanese sophora concentrate flower bud)], 30% galactomannans (8 mg) [from fenugreek (seed)]
30 mg
**

The product is found useful for the following medical conditions

Hives details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 8 Reviews
8.7
10
Effective for symptoms
Most Useful Review
32 people found this helpful
LOVE, LOVE, LOVE THIS BIO-QUERCETIN! It has significantly helped with my histamine intolerance symptoms, which began three years ago with hives. I take two capsules daily with food. I also include both powdered and fresh ginger in my morning smoothie, as it is a natural anti-histamine. The combination of Bio-Quercetin and ginger has completely banished my symptoms. Thank you, iHerb, for keeping this fantastic item in stock!

Cough details

SCIENTIFIC SCORE
Moderately Effective
Based on 2 Researches
8.5
USERS' SCORE
Good
Based on 14 Reviews
8.6
We uncovered how quercetin, alongside a specialized compound called PSFL2915, affects chronic cough by interacting with a specific part of a receptor known as P2X3.

Our tests showed that quercetin could effectively reduce coughing in male mice and guinea pigs without causing taste disturbances—a drawback seen with other similar medications.

This suggests that quercetin could be a promising alternative to existing treatments for chronic cough, offering a potential new avenue for relief.
9
Effective for cough
Most Useful Review
8 people found this helpful
After suffering from Covid and being a pulmonary patient, I found quercetin essential. I discovered its benefits online, particularly for bronchopulmonary patients (COPD), and after consulting my doctor, I incorporated it into my treatment. After two months, I noticed a significant decrease in my cough, fewer episodes of obstruction, and nearly no seasonal colds. Friends reported its effectiveness during Covid treatment, stating it leads to a more manageable infection and quicker recovery. I experienced no allergy or digestive issues while taking it and would recommend it, though consulting a doctor first is wise.

Pneumonia details

SCIENTIFIC SCORE
Moderately Effective
Based on 8 Researches
8
USERS' SCORE
Good
Based on 3 Reviews
8.6
We investigated quercetin's potential to combat pneumonia and its inflammatory effects triggered by lipopolysaccharide (LPS) using human alveolar epithelial cells. Our findings revealed that quercetin significantly reduced the release of key inflammatory markers and apoptosis in these cells, suggesting it may help manage lung inflammation. By activating the Nrf2 signaling pathway, quercetin not only diminishes inflammation but also protects cells from oxidative stress. Overall, while quercetin shows promise, its effectiveness as a standalone treatment for pneumonia remains unclear.
9
Helpful during pneumonia
Most Useful Review
2 people found this helpful
The capsules are very small and easy to swallow. This highly bioavailable type of Quercetin may not match the mg strengths of others, but it excels in supporting respiratory health and managing inflammation. I found it particularly beneficial when I had pneumonia, and I was grateful to have it on hand. Life Extension offers quality products that perform excellently.

Chronic Fatigue Syndrome details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.5
9
Increased energy
Most Useful Review
8 people found this helpful
I bought it with some skepticism after reading the reviews. For almost a month now, I have been taking it, and the results exceeded my expectations. The first thing I noticed was the ease of waking up and feeling well-rested, despite not changing my daily routine! My mind felt 'brighter'; even after work, I still wanted to engage in activities, and my fatigue vanished. I began to think more clearly, leading to new ideas for work! I even considered retirement! Now, I've started playing sports, which I previously struggled with, but now I have the energy for it. I've recommended this product to all my relatives. Highly recommend!

High Cholesterol details

SCIENTIFIC SCORE
Possibly Effective
Based on 16 Researches
7.8
USERS' SCORE
Good
Based on 2 Reviews
8.5
We investigated how onion peel extract, packed with quercetin, affects high cholesterol levels in mice. Divided into four groups, the mice were fed different diets for 12 weeks.

Those receiving the higher dose of onion peel extract showed significant reductions in serum and liver cholesterol levels, along with improved liver health markers compared to the group on a high cholesterol diet alone.

This suggests that quercetin may lower cholesterol by increasing its excretion.
9
Allergy relief
Most Useful Review
6 people found this helpful
I adore this product! After taking it for seasonal allergies for a couple of months, it has worked wonders, eliminating the need for over-the-counter meds. Initially, I took one in the morning and two at night. Within weeks, my sinus issues resolved, and my eyes are no longer itchy. I’ve reduced my intake to one pill at night. This has been the best allergy relief I’ve found. Highly recommend!

Pelvic Pain details

SCIENTIFIC SCORE
Possibly Effective
Based on 15 Researches
7.8
USERS' SCORE
Good
Based on 2 Reviews
8.5
We recently tested a quercetin-based supplement, Cysta-Q, on 22 patients with interstitial cystitis (IC) in an open-label trial. Over 4 weeks, participants took two capsules daily, and we assessed their symptoms before and after treatment.

The results were encouraging; all patients reported improvements in their problem and symptom indices, as well as pain levels. Interestingly, everyone but one individual experienced some positive change, and there were no side effects reported.

These promising findings suggest that quercetin could be beneficial for those suffering from IC, although larger, controlled studies are needed for confirmation.
9
Eliminated allergy symptoms
Most Useful Review
1 people found this helpful
I began taking this dietary supplement in spring when my seasonal allergies began acting up. Within a few days, I noticed that there were no traces of allergies - no more tears or a runny nose. During the time I took the supplement, the pelvic pain from an old knee injury also vanished. I no longer need anti-inflammatory or pain relief medications.

Bone Pain details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 7 Reviews
8.4
9
Pain relief noted
Most Useful Review
3 people found this helpful
I highly recommend this nutritional supplement, bioquercetin, which I purchased to lower uric acid levels. I am a retired woman with gout and suffered from pain in my knees, joints, and ankle. After just 10 days of taking it, the pain in my knees disappeared, and I hardly notice the bone pain in my leg now. This quercetin is absorbed 50 times better than regular quercetin, thanks to its phytosome delivery method, so I am very satisfied with the results.

Eczema details

SCIENTIFIC SCORE
Possibly Effective
Based on 3 Researches
7.7
USERS' SCORE
Good
Based on 5 Reviews
8.4
We investigated the potential of quercetin, a natural compound known for its antioxidant properties, in treating cutaneous eczema. Specifically, we prepared a special formulation of quercetin contained within liposomes and mixed it into a gel. This method aimed to enhance the compound's effectiveness in promoting skin healing.

Our findings revealed that this quercetin-infused gel not only demonstrated significant antioxidant activity but also improved skin conditions in mice suffering from eczema. The application of this formulation led to noteworthy reductions in various symptoms associated with the skin condition, such as inflammation and epidermal peeling.

In comparison to a commonly used eczema treatment, we found that the quercetin formulation outperformed the commercially available steroid cream in reducing malondialdehyde levels, a marker of oxidative stress in the body. These results suggest that quercetin-containing liposomes hold promise as a novel approach for preventing and treating cutaneous eczema.
9
Soothes skin irritation
Most Useful Review
1 people found this helpful
This product seems to be easily absorbed and functions quickly. My skin feels less irritated, calmer, and clearer. I noticed an improvement in my rosacea too. Additionally, I experienced relief in my sinuses when taken before and after coughing fits. This brand is consistently reliable.

Leg Cramps details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 2 Reviews
8.4
9
Legs no longer painful
Most Useful Review
I bought this at my mother's request. She uses this medication to keep her blood vessels in good condition. She claims that since she started taking it, her legs stopped hurting (the vessels were the issue). I'm purchasing her three or four cans.

Autoimmune Disorder details

SCIENTIFIC SCORE
Moderately Effective
Based on 16 Researches
8.1
USERS' SCORE
Good
Based on 11 Reviews
8.3
We explored how quercetin, a natural compound, may help alleviate symptoms of systemic lupus erythematosus (SLE), an autoimmune disorder. Our study observed that quercetin reduced kidney damage and swelling in the lymph nodes of lupus-affected mice. It appeared to lower the number of certain T cells that drive the disease and promoted cell death in aged immune cells. By influencing key pathways, quercetin showed potential as a therapy for SLE, offering hope in tackling this complex condition.
9
Effective for allergies
Most Useful Review
7 people found this helpful
I adore this product! Suffering from MCAS (mast cell activation disorder) and histamine intolerance, I previously relied on the expensive Cromolyn. Quercetin is even more effective in blocking mast cell cytokine release and alleviating contact dermatitis. I've tried others but Life Extension Bio-Quercetin is unparalleled due to its absorption. I take one capsule daily before meals. It really works, as I notice significantly fewer allergy symptoms now.

Chronic Cough details

SCIENTIFIC SCORE
Moderately Effective
Based on 1 Research
8
USERS' SCORE
Good
Based on 11 Reviews
8.3
We examined how quercetin, a natural compound, can help alleviate chronic cough by targeting P2X3 receptors, which are involved in cough reflexes. The study involved testing its effects on male mice and guinea pigs.

Results showed that quercetin effectively modulated these receptors without causing adverse taste effects, unlike other drugs like gefapixant. This potential opens up new avenues for treating chronic cough without unpleasant side effects.
9
Cough reduction
Most Useful Review
8 people found this helpful
After enduring COVID, I've found quercetin essential for managing my chronic cough and supporting my respiratory health. I learned about it half a year ago during post-COVID recovery discussions. Following my doctor's advice, I've been taking it for two months alongside other medications. The results have been excellent: my cough has noticeably decreased, and I experience far fewer obstructions and seasonal colds. Quercetin also appears to ease COVID symptoms for friends, speeding up recovery without causing allergic reactions or other side effects.

Headache details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 4 Reviews
8.3
7.5
Reduced frequency
Most Useful Review
1 people found this helpful
As I continue with quercetin, I've noticed a significant reduction in the frequency of headaches. It feels as though my body is revitalised.

Arthritis details

SCIENTIFIC SCORE
Moderately Effective
Based on 18 Researches
8.3
USERS' SCORE
Good
Based on 6 Reviews
8.2
We explored the effects of quercetin, a natural compound with potential benefits for treating osteoarthritis (OA), specifically focusing on its ability to target damaged chondrocytes, the cartilage cells that play a crucial role in joint health. In our study, we utilized specialized nanoparticles to increase the effectiveness of quercetin, overcoming its usual limitations related to absorption and bioavailability.

Our research involved subjecting human chondrocytes to conditions that mimic OA. Afterward, we treated them with either free quercetin or our quercetin-loaded nanoparticles (Q-NP). We found that the Q-NP not only allowed for better cellular absorption but also selectively induced apoptosis, or programmed cell death, in senescent chondrocytes. This is significant because eliminating these unhealthy cells could pave the way for healthier joint repair and function.

In addition to promoting cell death in the right cells, Q-NP led to an increase in oxidative stress and reduced key markers of cellular aging. We also noted that the treatment halted the cell cycle in cells that needed to be eliminated. Overall, our findings suggest that enhancing quercetin delivery through nanoparticles holds great promise for improving osteoarthritis outcomes by actively removing harmful senescent cells from joint tissues.
9
Pain relief observed
Most Useful Review
1 people found this helpful
I purchased this for my children’s arthritis. Combining it with other arthritis supplements has significantly reduced their pain, particularly during the worst mornings. I struggled to hold a cup of coffee due to the pain, but now I experience none. I'm hopeful for further improvement and will certainly repurchase.

Bacterial Infection details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 9 Reviews
8.2
8
Significant recovery noted
Most Useful Review
8 people found this helpful
After suffering from Covid, I discovered quercetin, which is recommended for bronchopulmonary conditions. Following my doctor’s advice, I included it in my treatment regime. Over the past two months, I’ve noticed a remarkable improvement: my cough has decreased significantly, and I’ve experienced far fewer respiratory issues and seasonal colds. Quercetin seems to aid in the recovery from Covid, making the infection easier to endure. I have not encountered any side effects, such as allergies or gastrointestinal issues, while taking it. I strongly suggest consulting a doctor before purchasing it.

Cold Sores details

SCIENTIFIC SCORE
Likely Very Effective
Based on 1 Research
9.5
USERS' SCORE
Good
Based on 12 Reviews
8.2
We investigated the effectiveness of the herbal treatment Gene-Eden-VIR/Novirin for managing cold sores. Our study involved a retrospective chart review with 68 participants who took 1 to 4 capsules daily over varying periods.

The results were promising, showing that 89.3% of participants benefited. The treatment significantly reduced both the number and duration of outbreaks compared to control groups. Gene-Eden-VIR/Novirin also outperformed traditional medications like acyclovir and valacyclovir without any side effects.

We strongly suggest considering Gene-Eden-VIR/Novirin as a preventive option for oral herpes.
9
Good results
Most Useful Review
The treatment works well for cold sores. I take it alongside immune support and it yields impressive results. My cold sores tend to disappear within three days.

Common Cold details

SCIENTIFIC SCORE
Possibly Effective
Based on 7 Researches
7.6
USERS' SCORE
Good
Based on 20 Reviews
8.2
We investigated whether quercetin, a natural plant compound, could help combat common cold caused by rhinovirus (RV). In our study, quercetin reduced RV replication and inflammation in airway cells both in laboratory settings and in mice. When given before or after infection, quercetin limited the virus's ability to replicate and decreased harmful immune responses.

While our findings are promising, indicating that quercetin acts at various points in the virus's lifecycle, we recognize the need for further research to solidify its effectiveness in treating or preventing common colds.
9
Assists cold recovery
Most Useful Review
100 people found this helpful
Quercetin has been associated with enhanced exercise performance and reduced inflammation, blood pressure, and blood sugar levels. The typical dosage is 500 mg daily. This supplement contains 29mg of Bio-Quercetin phytosome (providing 10 mg quercetin) and claims up to 50 times more bioavailability than standard quercetin. I used it for the common cold, and it was highly effective. I keep it at home, especially as I've heard it's part of the anti-covid protocol during these challenging times. Stay healthy!

Lung Cancer details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 4 Reviews
8.2
7.5
Good for immunity
Most Useful Review
1 people found this helpful
Very good, this bio quercetin is realistically priced for a quality product, very absorbable, and a good immunity booster. I have lung cancer, and this product has been recommended, with the absorbable nature of the bio quercetin being an advantage. I've had no illnesses since taking this supplement.

Rash details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 6 Reviews
8.2
9
Incredible relief
Most Useful Review
2 people found this helpful
Fantastic! I suffer from an allergy to sunlight, which causes conjunctivitis and rashes on my hands and feet with severe itching from April to September. This year, I took quercetin and managed without antihistamines, which feels remarkable. I adhered to the dosage of one capsule daily as indicated on the container.

Swollen Lymph Nodes details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 8 Reviews
8.2
9
Nasal swelling reduced
Most Useful Review
2 people found this helpful
I give this to my son, who suffers from allergies, and it serves well as an antihistamine. I’ve noticed a gradual subsiding of swelling in the nasal mucosa and relief from congestion. I look forward to monitoring its effectiveness as allergy season approaches in spring.

Asthma details

SCIENTIFIC SCORE
Moderately Effective
Based on 10 Researches
8.7
USERS' SCORE
Good
Based on 10 Reviews
8.1
We explored how quercetin, a natural compound found in fruits and vegetables, can impact asthma symptoms. Using an ovalbumin-induced mouse model of asthma, we aimed to uncover whether quercetin can help inhibit a process known as ferroptosis, potentially offering a new therapeutic approach for asthma sufferers.

Our findings showed that quercetin effectively reduced inflammation in the asthmatic mice. Specifically, it lowered levels of inflammatory factors such as IL-4, IL-5, and IL-13—substances typically elevated during an asthma attack. Notably, we also observed that quercetin increased the levels of superoxide dismutase, an important antioxidant, while decreasing malondialdehyde and ferric ions that are associated with oxidative stress.

Additionally, quercetin appeared to boost the expression of key proteins involved in defending against oxidative stress, specifically SIRT1, Nrf2, and HO-1. This suggests that quercetin not only helps combat inflammation but may also protect against cellular damage within the lungs. Overall, our study indicates that quercetin holds promise as a beneficial treatment for asthma by addressing both inflammatory and oxidative stress pathways.
9
Alleviates asthma attacks
Most Useful Review
2 people found this helpful
Quercetin exhibits antihistamine and anti-inflammatory properties that aid in alleviating various allergies and asthma attacks effectively.

Cold details

SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8.3
USERS' SCORE
Good
Based on 71 Reviews
8.1
We observed that quercetin, a powerful antioxidant, plays a significant role in helping grapes withstand cold temperatures. In our study, we found that grapes exposed to low temperatures accumulate more quercetin, which in turn enhances their cold resistance.

By applying exogenous quercetin, we noted a marked improvement in the grapes' ability to endure low-temperature stress. Our research revealed that a key gene, VvFLS1, responsible for quercetin synthesis is upregulated when grapes experience cold conditions.

We also discovered that VvbZIP22, a protein that binds to the VvFLS1 promoter, is crucial for mediating this process. When we overexpressed VvbZIP22 in grapes, it resulted in higher levels of quercetin and improved cold resistance, further confirming its pivotal role in the plant's adaptation to harsh environments.

Through these findings, we highlighted the importance of quercetin in enhancing grape survival during cold spells, showcasing a vital link between plant biology and climate resilience.
9
Improves colds effect
Most Useful Review
100 people found this helpful
Quercetin is associated with enhanced exercise performance and reduced inflammation, blood pressure, and blood sugar levels. The typical dose is 500 mg daily. This supplement contains 29 mg of Bio-Quercetin phytosome, equating to 10 mg of quercetin but claims 50 times greater bioavailability. I used it for a cold, and it worked brilliantly. Additionally, I understand it's part of the anti-COVID protocol, so I keep it at home during these challenging times. Stay healthy!

Flu details

SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
USERS' SCORE
Good
Based on 21 Reviews
8.1
We aimed to explore the health benefits of Vochysia divergens, known for its traditional use in treating asthma and flu. The study evaluated how its aqueous leaf extract impacts inflammatory markers in macrophages and lymphocytes.

Through various methods, we discovered that the extract and a specific flavonoid can significantly reduce pro-inflammatory markers. This supports the local tradition of using Cambará tea for respiratory issues, highlighting its potential medicinal properties.
10
Immunity booster
Most Useful Review
2 people found this helpful
I have been using this product for about two years. In this time, I haven’t caught a cold, flu, or had any immunity issues. My mum has also benefitted the same way. Neither of us have caught COVID, and this is a key reason. The capsules are small, easy to swallow, and the quality is remarkable. I will continue taking this.

Food Poisoning details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Good
Based on 3 Reviews
8.1
9
Critical relief
Most Useful Review
This remedy is excellent for alleviating allergy symptoms, even food allergies, which has been vital for me. Additionally, it acts as a powerful antioxidant.

Allergies details

SCIENTIFIC SCORE
Moderately Effective
Based on 15 Researches
8.4
USERS' SCORE
Good
Based on 60 Reviews
8
We conducted a study involving 66 Japanese adults suffering from allergy symptoms, focusing on the potential of a quercetin-containing supplement. Participants took either the supplement or a placebo daily for four weeks.

Notable results showed that those taking quercetin experienced significant improvements in allergy-related symptoms such as eye itching, sneezing, and nasal discharge. Additionally, their overall quality of life received a boost.

While there were minor side effects, the findings suggest that quercetin might be an effective option for managing certain allergy symptoms.
9
Improves allergy symptoms
Most Useful Review
123 people found this helpful
Quercetin as an antioxidant is beneficial for covid and greatly improves symptoms of allergies. I switched from a regular form to this supposedly more bioavailable version for testing. The capsules contain smaller substances but claim a 50-fold better bioavailability.

Cancer details

SCIENTIFIC SCORE
Moderately Effective
Based on 32 Researches
8.2
USERS' SCORE
Good
Based on 8 Reviews
8
We aimed to understand how quercetin and its derivatives, especially mono-methylated quercetins (MQs), might help in treating colorectal cancer. Using advanced techniques like tandem mass spectrometry, we identified specific structural features of these flavonoids that could enhance their anti-cancer activities.

Our findings showed that methylation at specific positions on the quercetin molecule significantly improved its ability to fight cancer cells. Notably, 3-O-methylquercetin and 4'-O-methylquercetin were particularly effective. These compounds caused cancer cells to stop dividing and triggered programmed cell death, also known as apoptosis.

We observed that these MQs worked through several mechanisms, such as inducing oxidative stress, disrupting mitochondrial function, and inactivating cancer-related signaling pathways—all while being non-toxic to normal human colon cells. This makes them promising candidates for cancer therapy, especially for patients with colorectal cancer.

Ultimately, our research revealed that small modifications in flavonoid structures could lead to significant improvements in their anti-cancer effectiveness, providing a path for developing targeted treatments for colorectal cancer.
7.5
Potential cancer protection
Most Useful Review
96 people found this helpful
Quercetin is scientifically proven to possess antioxidant and anti-inflammatory properties, potentially aiding in reducing inflammation, killing cancer cells, and controlling blood sugar levels. Research suggests it may help protect against certain cancers, including leukemia and lung cancer, and its neuroprotective properties could benefit brain health. Overall, quercetin shows promise in both the treatment and prevention of various forms of cancer.

Heart Attack details

SCIENTIFIC SCORE
Moderately Effective
Based on 16 Researches
8.3
USERS' SCORE
Moderately Good
Based on 6 Reviews
7.9
We investigated the addition of quercetin to standard treatment in patients experiencing their first heart attack. In this multicenter study with 143 participants, quercetin was administered during the critical early hours of treatment.

The results showed a significant reduction in heart tissue damage compared to those who only received standard therapy. Specifically, fewer patients in the quercetin group experienced internal bleeding in the heart muscle.

While the initial findings are promising, additional studies are needed to confirm these benefits.
9
Alleviates allergy symptoms
Most Useful Review
4 people found this helpful
I’ve been taking quercetin for five years during ragweed season, greatly helping me manage allergy symptoms without antihistamines. It significantly alleviates my condition, allowing me to live more comfortably without severe attacks.

Adenoiditis details

SCIENTIFIC SCORE
No researches found
N/A
USERS' SCORE
Moderately Good
Based on 4 Reviews
7.8
7.5
Better than pharmaceuticals
Most Useful Review
Good Working Form Quercetin from another manufacturer was generally used, but it became difficult to find during the pandemic. Therefore, we tried this product. It offers good value for money. We purchased it for our children, especially for the older one who has adenoids and always gets ill. Doctors usually prescribe pharmaceuticals to reduce swelling, but this is a fantastic replacement.

Blood Clot details

SCIENTIFIC SCORE
Possibly Effective
Based on 16 Researches
7.9
USERS' SCORE
Moderately Good
Based on 11 Reviews
7.6
We explored the effects of quercitrin on platelet activation to better understand its role in blood clotting. Through comprehensive experiments—like assessing platelet aggregation and thrombus formation—we observed that quercitrin significantly hinders platelet activation. This means it impairs platelet aggregation and granule secretion, which are crucial in forming blood clots.

Moreover, quercitrin showed promise in preventing arterial thrombus formation without extending bleeding time, hinting at its potential as a treatment for thrombotic diseases. Overall, our findings suggest that quercitrin could be beneficial in managing blood clot-related conditions.
9
Prevents clots
Most Useful Review
6 people found this helpful
I find this drug to be fantastic! Bio-Quercetin Life Extension is a bioflavonoid that enhances immune function. It helps maintain normal blood pressure and counteracts oxidative stress. Quercetin is particularly favoured for promoting healthy blood vessels by preventing blood clots and increasing capillary elasticity. It's a family-friendly supplement with proven results during treatment. I recommend it to everyone!

Cardiovascular Disease details

SCIENTIFIC SCORE
Moderately Effective
Based on 14 Researches
8.3
USERS' SCORE
Moderately Good
Based on 9 Reviews
7.6
We explored the effects of quercetin on cardiac fibrosis, a major concern in cardiovascular diseases. Using an experiment on mice, we administered quercetin after inducing cardiac stress and assessed its impact on heart function and fibrosis. Our findings showed that quercetin significantly reduced cardiac fibrosis and helped reverse cell proliferation caused by stress hormones. This protective effect was linked to its regulation of the SIRT3 signaling pathway. Overall, quercetin presents a promising avenue for addressing heart fibrosis.
7.5
Effective supplement
Most Useful Review
8 people found this helpful
Quercetin, a bioflavonoid, boosts immune function and inflammatory response while promoting cardiovascular health. This bioquercetin is exceptionally absorbed, ideal for enhancing immunity and cardiovascular stability—hence my choice over other brands. It has consistently proven effective in supporting my health.

Sinusitis details

SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8
USERS' SCORE
Moderately Good
Based on 7 Reviews
7.6
This study explored how quercetin may help reduce inflammation associated with sinusitis using a rat model. We observed that introducing lipopolysaccharides (LPS) caused significant inflammation in nasal and sinus areas, as well as in the lungs and brain.

When we administered quercetin after the LPS treatment, it notably decreased inflammatory markers like TNF-α and IL-6. The results indicated reduced inflammation in nasal and lung tissues, showcasing quercetin's potential benefits. However, while there were encouraging findings, its effects on brain inflammation were more limited.
10
Doctor consultation advised
Most Useful Review
This product provides wonderful support for sinusitis, high blood pressure, and cholesterol issues. I recommend consulting a doctor before use.
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