Life Extension Optimized Quercetin

204 people found this helpful

I have experienced increased energy and strength. After two weeks of taking Quercetin, my shortness of breath disappeared, allowing me to walk and talk quickly without straining! Additionally, Quercetin greatly improved my immunity, alleviating pain, and I noticed relief from chronic rhinitis as my runny nose has stopped bothering me!

Diarrhea details

Quercetin reduces diarrhea in piglets

Based on 14 Researches

Mao Y, Yang Q, Liu J, Fu Y, Zhou S, et al. Quercetin Increases Growth Performance and Decreases Incidence of Diarrhea and Mechanism of Action in Weaned Piglets. Oxid Med Cell Longev. 2024;2024:5632260. doi:10.1155/2024/5632260

This study strategically divided 48 weaned piglets into four groups to evaluate how quercetin impacts diarrhea and growth. We noticed that piglets receiving higher doses of quercetin (500 and 750 mg/kg) had significantly fewer instances of diarrhea and an improved feed-to-gain ratio.

Additionally, quercetin improved the diversity of gut bacteria and regulated key inflammatory markers, suggesting it helps balance gut health. This shows promise for using quercetin as a means to reduce diarrhea and enhance growth performance in weaned piglets.

No diarrhea occurred

Most Useful Review

This product effectively combats viral infections and aids sleep. Previously, I bought natural Sophora japonica quercetin, which was too cold and caused diarrhoea. However, after switching to this product, it no longer led to diarrhoea. Additionally, my sleep quality has improved significantly, and unlike GlyNAC, there is no development of tolerance with this product.

Hypertension details

Effective for hypertension

2 people found this helpful

Quercetin reduces the risk of chronic vascular diseases and normalises permeability. As someone who takes it daily alongside Now Foods Bromelain, I've noticed it significantly helps manage my husband's high blood pressure, keeping it below 150 (it used to be 160/100). The addition of quercetin for hypertension has been beneficial.

Arthritis details

Quercetin nanoparticles reduce senescence

Based on 18 Researches

Karim A, Qaisar R, Suresh S, Jagal J, Rawas-Qalaji M. Nanoparticle-delivered quercetin exhibits enhanced efficacy in eliminating iron-overloaded senescent chondrocytes. Nanomedicine (Lond). 2024;19:2159. doi:10.1080/17435889.2024.2393074

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.

Wonders for shoulders

Most Useful Review

6 people found this helpful

I was sceptical when I first heard about this on talk radio, but it works wonders on my arthritis in my shoulders! I used to take Mobic for that chronic pain.

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.

Beneficial for allergies

Most Useful Review

1 people found this helpful

Excellent product! I’ve appreciated the quality of Quercetin from a trusted supplier. The medium-sized capsules are easy to swallow. I take it during spring when tree pollen triggers my allergies; thanks to this supplement, I experienced no allergic reactions last year. I also use it during colds and buy it regularly. I highly recommend it!

Bloating details

3 people found this helpful

I've been using these enzymes daily for a month, and I'm feeling much better! They’ve significantly helped with my chronic bloating.

Blood Clot details

Quercitrin reduces platelet activation

Oh TW, Do HJ, Jeon JH, Kim K. Quercitrin inhibits platelet activation in arterial thrombosis. Phytomedicine. 2021;80:153363. doi:10.1016/j.phymed.2020.153363

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.

Supports blood vessels

Most Useful Review

214 people found this helpful

The pandemic prompted me to explore various supplements to boost my immune system against the new virus. I discovered quercetin, an antioxidant that combats oxidative stress, prevents cytokine storms, and strengthens blood vessel walls. It improves microcirculation, aids normal blood clotting, and prevents blood clots, particularly in lung vessels. Additionally, it maintains proper functioning of the bronchi and lungs while exhibiting antiviral activity. Quercetin also facilitates zinc, a potent immune booster, to enter cells.

High Cholesterol details

Quercetin lowers cholesterol effectively

Kang HJ, Pichiah PBT, Abinaya RV, Sohn HS, Cha YS. Hypocholesterolemic effect of quercetin-rich onion peel extract in C57BL/6J mice fed with high cholesterol diet. Food Sci Biotechnol. 2016;25:855. doi:10.1007/s10068-016-0141-4

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.

Cholesterol normalised

Most Useful Review

53 people found this helpful

Excellent! I bought it for my father, who has high blood pressure, high cholesterol, and various age-related concerns. He has tolerated it well; after just a month, the results were noticeable. His cholesterol levels gradually returned to normal, and his blood pressure has normalised as well. Quercetin is also being used to boost immunity.

Lung Cancer details

6 people found this helpful

I took it after recovering from COVID with my husband. We managed quite well, and while we used Nattokinase, zinc 100 mg, and Quercetin, our acquaintances used pharmacy medicines. I started taking this Quercetin for myself, my husband, relatives, and friends who had lung damage from the virus. I felt an improvement in my breathing on the very same day I started.

Sinusitis details

Quercetin reduces sinus inflammation

Based on 3 Researches

Tiboc-Schnell CN, Filip GA, Man SC, Decea N, Moldovan R, et al. Quercetin attenuates naso-sinusal inflammation and inflammatory response in lungs and brain on an experimental model of acute rhinosinusitis in rats. J Physiol Pharmacol. 2020;71. doi:10.26402/jpp.2020.4.03

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.

Quick relief from sinusitis

Most Useful Review

Quercetin helped my whole family endure the coronavirus mildly! My mother developed a runny nose, which could lead to sinusitis. On the first day, she took 500 mg twice daily along with zinc, and by the next day, her symptoms had vanished! I'm very pleased with quercetin and the dosage!

Swollen Lymph Nodes details

Reduced swelling overall

6 people found this helpful

My husband had an inexplicable rash on his face. After numerous tests and a three-month course of antibiotics, nothing seemed to work. I began researching options on iHerb and discovered quercetin, which has made a significant difference. Now, my husband experiences less itching, swelling, and redness. I would recommend it to others dealing with similar skin issues.

Athlete’s Foot details

Quick recovery observed

I recommend this cool antioxidant. After recovering from Covid, it quickly got me back on my feet and allowed me to return to my normal life.

Bone Pain details

10 people found this helpful

Half a year ago, I had Covid, and my condition after the illness wasn't good. I experienced shallow breathing, heaviness in my chest, and pain in my bones alongside aching joints, not to mention severe fatigue and apathy. Despite taking several vitamins, my situation hardly improved. After a month of taking quercetin, my shortness of breath completely disappeared, and my vitality returned. The pain in my bones and joints has practically vanished. I've decided to continue taking quercetin for an additional two months. This supplement is essential!

Irritable Bowel Syndrome details

6 people found this helpful

Excellent! Postcoid syndrome had been troubling me. After reading about how quercetin can help with this issue, I ordered it from this manufacturer. Within a week of starting the supplement, I began to feel significantly better. I’m not quite sure how it works, but it definitely assists. I plan to continue taking quercetin to enhance the results.

Pelvic Pain details

Katske F, Shoskes DA, Sender M, Poliakin R, Gagliano K, et al. Treatment of interstitial cystitis with a quercetin supplement. Tech Urol. 2001;7:44.

Based on 15 Researches

Quercetin shows promise for IC

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.

Eliminated joint pain

Most Useful Review

10 people found this helpful

Half a year ago, I had Covid, which left me with heavy breathing, shallow shortness of breath, and pain in my bones and joints. After trying various vitamins with little improvement, I started taking quercetin for a month. Now, my shortness of breath has vanished, and my bone and joint pain have significantly reduced. I will continue taking it; it's essential for my health.

Pneumonia details

Quercetin reduces inflammation but uncertain

Based on 8 Researches

Lv P, Han P, Cui Y, Chen Q, Cao W. Quercetin attenuates inflammation in LPS-induced lung epithelial cells via the Nrf2 signaling pathway. Immun Inflamm Dis. 2024;12:e1185. doi:10.1002/iid3.1185

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.

7.5

Preventative measure

Most Useful Review

1 people found this helpful

It effectively helps prevent Wuhan pneumonia. If you feel unwell, just take one tablet and you'll feel better. It's an excellent formula!

Sleep Apnea details

Improved sleep quality

After taking this, my sleep quality has notably improved. I will definitely purchase it again.

Whooping Cough details

2 people found this helpful

Excellent! After enduring COVID-19, I struggled to shake off my cough. I tried various medications and syrups to no avail. Upon learning about quercetin’s effectiveness for airway inflammation, I decided to try it. Taking two capsules daily led to a significant reduction in my cough, and breathing became easier, all thanks to quercetin. It is also a remarkable antioxidant that bolsters our immune system, with added vitamin C and bioflavonoids ensuring its efficacy.

Acne details

Quercetin shows promise against acne

Based on 6 Researches

Lim HJ, Kang SH, Song YJ, Jeon YD, Jin JS. Inhibitory Effect of Quercetin on Propionibacterium acnes-induced Skin Inflammation. Int Immunopharmacol. 2021;96:107557. doi:10.1016/j.intimp.2021.107557

We examined how quercetin, a popular plant-based antioxidant, affects skin inflammation caused by the acne-causing bacteria Propionibacterium acnes. Through both laboratory and mouse studies, we found that quercetin significantly decreased inflammation-related proteins and cell responses triggered by this bacteria. When tested on mice, quercetin reduced swelling and redness at the injection site. These findings suggest that quercetin could serve as a beneficial treatment option for acne-related inflammation, opening doors for its use in skin care products and therapies.

7.5

Heals acne quickly

Most Useful Review

Very good! Second purchase; acne wounds heal faster.

Asthma details

Quercetin alleviates asthma symptoms

Based on 10 Researches

Sun B, Cai F, Yu L, An R, Wei B, et al. Quercetin inhibits ferroptosis through the SIRT1/Nrf2/HO-1 signaling pathway and alleviates asthma disease. Transl Pediatr. 2024;13:1747. doi:10.21037/tp-24-193

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.

Effective for asthma

Most Useful Review

8 people found this helpful

Quercetin, extracted from cilantro and red onion, is a powerful antioxidant and anti-inflammatory. Its efficacy is excellent for reducing inflammation, asthma, allergic rhinitis, and other conditions. In severe cases, taking just one tablet daily resulted in my symptoms disappearing completely after a month.

Brain Tumor details

Cognitive enhancement

1 people found this helpful

Quercetin is essential for maintaining good brain function, and I always order it here.

Breast Cancer details

Heart disease protection

The best of Life Quercetin! It helps protect me from heart disease and cancer, also stabilising cells with anti-inflammatory and antihistamine effects.

Common Cold details

Quercetin reduces rhinovirus effects

Based on 7 Researches

Ganesan S, Faris AN, Comstock AT, Wang Q, Nanua S, et al. Quercetin inhibits rhinovirus replication in vitro and in vivo. Antiviral Res. 2012;94:258. doi:10.1016/j.antiviral.2012.03.005

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.

Prevention recommended

Most Useful Review

13 people found this helpful

For immunity, it is crucial! Following Dr. Murray's advice, I take Quercetin at 250 - 500 mg daily, NAC 600 mg twice a day, and Selenium. This regimen significantly aids in preventing and treating symptoms of colds and viruses. Thank you, Ayherb! Cheers to Dr. Murray!

Influenza details

Preventive effects observed

I purchased a bottle of multivitamins along with quercetin for my family to help prevent influenza and COVID-19. The price is reasonable, and the capsules are easy to swallow.

Migraine details

Quercetin shows promise for migraines

Foudah AI, Devi S, Alqarni MH, Alam A, Salkini MA, et al. Quercetin Attenuates Nitroglycerin-Induced Migraine Headaches by Inhibiting Oxidative Stress and Inflammatory Mediators. Nutrients. 2022;14. doi:10.3390/nu14224871

We explored how quercetin might alleviate migraine symptoms caused by nitroglycerin in rats. Over a week, we administered quercetin and examined its impact on behavior after inducing migraine pain.

The results were promising; quercetin significantly improved behavioral responses linked to migraine pain, showing a decrease in the severity of symptoms.

Its effectiveness appears to stem from quercetin's antioxidant and anti-inflammatory properties, suggesting it could be a helpful treatment for migraine relief.

Improved migraine relief

Most Useful Review

Great, it normalises sleep with regular intake of 2 capsules and significantly improves my migraines. The special effects kick in, and when I take the pills as usual, supplemented with magnesium, the migraine fades lightly within a couple of hours. Previously, I would be incapacitated for half a day. The frequency of attacks has decreased, likely aided by my consistent medicinal support. Regular magnesium intake eases both PMS and menstruation; I no longer feel irritable, and the first day can pass without painkillers. Chronic nasopharyngeal pain hardly worsens. While it’s tough to attribute all benefits solely to magnesium—given my omega-3 and other supplements—I believe it has played a part. With magnesium, lecithin, and protein, I truly noticed the positive effect of taking collagen. There were no allergic reactions or stomach issues, and the quality is superb with natural ingredients.

Psoriasis details

Quercetin shows promise for psoriasis

Based on 3 Researches

Ma J, Wang F, Wang L, Wang Y, Wu D, et al. Inhibition of PI3K/AKT/GLUT1 Signaling Pathway by Quercetin in the Treatment of Psoriasis. Front Biosci (Landmark Ed). 2025;30:26884. doi:10.31083/FBL26884

We set out to explore the therapeutic impact of quercetin on psoriasis and how it interacts with a specific signaling pathway known as PI3K/AKT/GLUT1, which plays a critical role in inflammation and immune responses. Using a mouse model of psoriasis induced by imiquimod, we carefully assessed the effects of quercetin on skin lesions and associated histopathological features.

To deepen our understanding, we evaluated human keratinocyte cells (HaCaT) to see how quercetin influenced cell proliferation and apoptosis. Our findings indicated that quercetin appeared helpful in reducing the symptoms of psoriasis and that it had a notable effect on signaling through the PI3K/AKT/GLUT1 pathway.

Overall, the results suggest that quercetin could be a promising candidate for treating psoriasis, marking a step forward in potential therapeutic options. As we continue to investigate this area, these insights may pave the way for more targeted treatments in the future.

7.5

Reduced psoriasis irritation

Most Useful Review

Great product! I've been using Life Extension's Optimised Quercetin for a few weeks now, and I've noticed a remarkable improvement in my overall well-being. As someone who deals with occasional joint inflammation and seasonal allergies, this supplement has made a noticeable difference. By week four, I experienced reduced joint flare-ups and less irritation from my psoriasis, particularly on my face. My immune system has held strong, and I haven't fallen ill despite my kids bringing home minor colds. What I really love about this product is its versatility; it's also helped with respiratory issues. The antioxidant properties of quercetin have contributed to reduced inflammation, and I've felt more energised throughout the day. Life Extension's commitment to quality is evident, and this supplement has become a staple in my daily routine.

Bacterial Infection details

Significant improvement noted

100 people found this helpful

Works wonderfully! The doctor prescribed this medication after I suffered a respiratory infection to enhance my lung condition, as I had slight fibrosis and shortness of breath. I found the quality of the drug impressive; by the third day, I experienced an improvement in my energy and strength. After two weeks, my breathlessness disappeared entirely, allowing me to walk and speak quickly without difficulty! Additionally, I noticed that Quercetin had a positive impact on my immunity, alleviating my chronic rhinitis, and my runny nose is no longer troublesome. Ultimately, I gained much more from this medication than I anticipated.

Cancer details

Quercetin's role against colorectal cancer

Based on 32 Researches

Han S, Yi YW, Kim H, Lee MY, Choi H, et al. Structure-activity relationship analysis of mono-methylated quercetins by comprehensive MS/MS analysis and anti-proliferative efficacy in human colorectal cancer cells. Biomed Pharmacother. 2025;184:117930. doi:10.1016/j.biopha.2025.117930

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.

Reduces cancer risk

Most Useful Review

7 people found this helpful

Quercetin is a powerful antioxidant that has a strong healing effect on the body. It addresses efforts to combat diseases such as stroke and heart attack. The anti-inflammatory properties of quercetin benefit blood vessels, lower blood pressure, and help prevent atherosclerosis. Its antioxidant action reduces the risk of cardiovascular disease. Including foods, particularly fruits and vegetables, rich in quercetin in your diet can significantly lower the risk of dangerous diseases. Quercetin possesses strong anti-tumour properties and can inhibit the growth of new cancer cells. In larger doses, it may even eliminate cancer cells.

Cardiovascular Disease details

Lin DW, Jiang YW, Wu C, Zhang H, Li YZ, et al. Quercetin Alleviates Cardiac Fibrosis via Regulating the SIRT3 Signaling Pathway. Cardiovasc Drugs Ther. 2024. doi:10.1007/s10557-024-07658-x

Based on 14 Researches

Quercetin reduces cardiac fibrosis

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

Promotes vascular integrity

Most Useful Review

This supplement helps maintain normal cholesterol levels, safeguarding the integrity of vascular endothelium and enhancing cardiovascular health. I've already completed one bottle and intend to continue taking it.

Cold Sores details

Herbal treatment effective for cold sores

Likely Very Effective

Polansky H, Javaherian A, Itzkovitz E. Clinical Trial of Herbal Treatment Gene-Eden-VIR/Novirin in Oral Herpes. J Evid Based Integr Med. 2018;23:2515690X18806269. doi:10.1177/2515690X18806269

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.

Breath improvement

Most Useful Review

5 people found this helpful

In our challenging times, I’ve read a lot about this drug being part of treatment protocols. I self-diagnosed back in February 2020 but didn't visit the doctor. I bought it for prevention, particularly during the cold season alongside vitamin C. After reading reviews mentioning easier breathing after 20 minutes, I decided to try it. I mixed the capsule with water and felt immediate relief; my nose started breathing smoothly. This is the best product I've tried so far. I highly recommend it!

Gastritis details

Excellent! He assisted me with stomach issues, including an early stage of gastritis. I took two jars initially, then one tablet daily as prescribed by my doctor. My stomach now digests normally, and I haven't felt any discomfort. Overall, my immunity has enhanced, and I haven't been unwell since winter.

Hives details

Consistent hives management

3 people found this helpful

Five Stars. I find that I have to take this multiple times throughout the day to keep hives at bay.

Heart Disease details

Quercetin shows promise in heart failure

Long X, Tao S, Yang S, Li S, Rao L, et al. Quercetin improves heart failure by inhibiting cardiomyocyte apoptosis suppressing the MAPK signaling pathway. Nan Fang Yi Ke Da Xue Xue Bao. 2025;45:187. doi:10.12122/j.issn.1673-4254.2025.01.22

We explored how quercetin might help those suffering from heart failure. In our research, we utilized advanced databases to identify specific targets of quercetin, focusing on its effects on heart cells.

Our findings suggest that quercetin may work by reducing cell death in heart cells via the MAPK signaling pathway. Notably, it helped lower a key ratio linked to cell survival and decreased markers of cell stress. Overall, quercetin shows promise in battling heart failure symptoms, but further studies are needed to confirm these effects in broader settings.

Powerful healing

Most Useful Review

A good supplement! Quercetin is a powerful antioxidant with significant healing effects on the body. It addresses issues like stroke and heart attack effectively. Its anti-inflammatory properties benefit blood vessels, reduce blood pressure, and protect against atherosclerosis. Additionally, its antioxidant action lowers the risk of cardiovascular disease. Quercetin exhibits strong antitumour effects and may hinder the growth of new cancer cells. I wish you all health and peace!

Allergies details

Quercetin may alleviate allergy symptoms

Based on 15 Researches

Yamada S, Shirai M, Inaba Y, Takara T. Effects of repeated oral intake of a quercetin-containing supplement on allergic reaction: a randomized, placebo-controlled, double-blind parallel-group study. Eur Rev Med Pharmacol Sci. 2022;26:4331. doi:10.26355/eurrev_202206_29072

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.

7.5

Effective for allergies

Most Useful Review

88 people found this helpful

I recommend quercetin for its benefits in treating allergies and improving blood flow. This natural supplement has anti-inflammatory properties and can alleviate headaches caused by vessel spasms. It has significantly improved my overall well-being.

Blurred Vision details

Helped to assimilate vitamin D; my vision improved — it’s truly food for the eyes.

Eczema details

Liu C, Cheng X, Wu Y, Xu W, Xia H, et al. Antioxidant Activity of Quercetin-Containing Liposomes-in-Gel and Its Effect on Prevention and Treatment of Cutaneous Eczema. Pharmaceuticals (Basel). 2023;16. doi:10.3390/ph16081184

Based on 3 Researches

Quercetin shows promise for eczema

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.

Eczema not recurred

Most Useful Review

3 people found this helpful

After taking it for a few months, my eczema and urticaria has not recurred, which is amazing. I usually have to go to the hospital around this time of year!

Heart Attack details