Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 14 Researches
8.3
USERS' SCORE
Moderately Good
Based on 9 Reviews
7.6
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
**
Top Medical Research Studies
8
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.
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8
We examined the effects of quercetin on heart damage following a heart attack in rats. In our study, quercetin was administered just before reperfusion after a blockage in the heart's blood supply.
The results showed that quercetin significantly improved heart function and reduced harmful neutrophil formations. By lowering these formations, we believe quercetin may offer new hope as a protective treatment against heart injuries caused by reperfusion and inflammation.
The results showed that quercetin significantly improved heart function and reduced harmful neutrophil formations. By lowering these formations, we believe quercetin may offer new hope as a protective treatment against heart injuries caused by reperfusion and inflammation.
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9.5
Quercetin improves post-MI recovery
We investigated the potential of quercetin, a natural compound found in fruits and vegetables, to prevent challenges after a heart attack (myocardial infarction, or MI). By treating mice with quercetin before inducing MI, we observed significant improvements in heart function, survival rates, and reduced heart damage caused by inflammation and fibrosis.
The study also revealed that quercetin helps shift immune cells toward a healing state, crucial for recovery. This promising research opens the door for quercetin's use in treating cardiac issues related to heart attacks.
The study also revealed that quercetin helps shift immune cells toward a healing state, crucial for recovery. This promising research opens the door for quercetin's use in treating cardiac issues related to heart attacks.
Read More
Most Useful Reviews
6
Promotes cardiovascular health
35 people found this helpful
When taking zinc, it's beneficial to also take quercetin, as it enables zinc to enter cells, halting viral replication. This bioflavonoid enhances immune function and inflammatory responses while supporting cardiovascular health and endothelial integrity. It mitigates oxidative processes and can help reduce allergic reactions. I find its effects particularly notable for overall wellness.
Read More
7.5
Effective supplement
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.
Read More
7.5
Promotes cardiovascular health
2 people found this helpful
Gluten Free, 1 tablet per day, Non-GMO, LE certified, highly absorbable Quercetin Phytosome Dietary Supplement. Quercetin, a bioflavonoid, supports immune function and inflammatory response while promoting cardiovascular health and endothelial health. Our Bioquercetin is absorbed 50 times better than traditional quercetin, making it ideal for resolving inflammation and bolstering cardiovascular health.
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 14 Researches
8.3
- All Researches
9.5
Quercetin improves post-MI recovery
We investigated the potential of quercetin, a natural compound found in fruits and vegetables, to prevent challenges after a heart attack (myocardial infarction, or MI). By treating mice with quercetin before inducing MI, we observed significant improvements in heart function, survival rates, and reduced heart damage caused by inflammation and fibrosis.
The study also revealed that quercetin helps shift immune cells toward a healing state, crucial for recovery. This promising research opens the door for quercetin's use in treating cardiac issues related to heart attacks.
The study also revealed that quercetin helps shift immune cells toward a healing state, crucial for recovery. This promising research opens the door for quercetin's use in treating cardiac issues related to heart attacks.
Read More
9
We examined the impact of Danggui Buxue Decoction (DBD), a traditional Chinese remedy, on atherosclerotic plaques in a mice model. Using a blend of advanced bioinformatics and experimental validation, we discovered that DBD can effectively stabilize these plaques.
Key ingredients like quercetin played a significant role in this process by targeting several important proteins that influence inflammation and lipid metabolism. Our findings suggest that quercetin and another compound, kaempferol, work together to improve heart health by reducing atherosclerotic vulnerability.
Key ingredients like quercetin played a significant role in this process by targeting several important proteins that influence inflammation and lipid metabolism. Our findings suggest that quercetin and another compound, kaempferol, work together to improve heart health by reducing atherosclerotic vulnerability.
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9
We examined how quercetin might protect against heart issues associated with menopause, particularly by looking at its effects on cardiac reperfusion arrhythmias in ovariectomized rats. Over a four-week period, we found that quercetin significantly reduced heart damage and improved mitochondrial function by enhancing ATP production. This suggests quercetin may help manage some heart health risks tied to decreased estrogen levels. While our findings are promising, further research in humans is needed to confirm these effects.
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9
We investigated the effects of quercetin (QUE), a natural dietary phytochemical, on platelet toxicity induced by extracellular histones, which can harm our body during critical illnesses.
In our study, we set up experiments to observe how histones trigger platelet activation and the protective influence of QUE. Our findings revealed that QUE successfully reduced platelet activation and protected against stress-induced damage.
This suggests that quercetin could be a promising candidate for addressing platelet-related issues associated with histones.
In our study, we set up experiments to observe how histones trigger platelet activation and the protective influence of QUE. Our findings revealed that QUE successfully reduced platelet activation and protected against stress-induced damage.
This suggests that quercetin could be a promising candidate for addressing platelet-related issues associated with histones.
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9
We developed an innovative biosensing platform to explore how quercetin affects heart cells, especially during cardiac oxidative stress. By testing cardiomyocytes, we found that quercetin can protect against injury caused by oxidative stress, highlighting its potential as a therapeutic option.
However, we also determined a safe concentration limit and noted potential long-term effects on heart cells. This balanced evaluation not only sheds light on quercetin's advantages but also emphasizes the need for careful consideration in its use for cardiovascular health.
However, we also determined a safe concentration limit and noted potential long-term effects on heart cells. This balanced evaluation not only sheds light on quercetin's advantages but also emphasizes the need for careful consideration in its use for cardiovascular health.
Read More
User Reviews
USERS' SCORE
Moderately Good
Based on 9 Reviews
7.6
- All Reviews
- Positive Reviews
- Negative Reviews
6
Promotes cardiovascular health
35 people found this helpful
When taking zinc, it's beneficial to also take quercetin, as it enables zinc to enter cells, halting viral replication. This bioflavonoid enhances immune function and inflammatory responses while supporting cardiovascular health and endothelial integrity. It mitigates oxidative processes and can help reduce allergic reactions. I find its effects particularly notable for overall wellness.
Read More
7.5
Effective supplement
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.
Read More
7.5
Promotes cardiovascular health
2 people found this helpful
Gluten Free, 1 tablet per day, Non-GMO, LE certified, highly absorbable Quercetin Phytosome Dietary Supplement. Quercetin, a bioflavonoid, supports immune function and inflammatory response while promoting cardiovascular health and endothelial health. Our Bioquercetin is absorbed 50 times better than traditional quercetin, making it ideal for resolving inflammation and bolstering cardiovascular health.
Read More
7.5
Improves cardiovascular health
1 people found this helpful
Bioquercetin with high digestibility improves the state of the cardiovascular system and supports immunity. It effectively combats viral loads and inflammation. Truly essential!
Read More
7.5
Fights infections
1 people found this helpful
It improves the condition of the cardiovascular system and aids the immune system in combating viruses, bacteria, and inflammation in the body.
Read More
Frequently Asked Questions
7.5
Improves cardiovascular health
1 people found this helpful
Bioquercetin with high digestibility improves the state of the cardiovascular system and supports immunity. It effectively combats viral loads and inflammation. Truly essential!
7.5
Supports cardiovascular health
Quercetin supports the cardiovascular system and reduces blood viscosity, thus preventing the risk of blood clots. It also bolsters immunity and protects the body from oxidative stress, besides assisting with allergies. The capsules are small, very convenient to take with a neutral taste, and only one needs to be taken daily. Thirty capsules are sufficient for a month. Sophora seed supplements enhance absorption, rendering the supplement bioavailable!
7.5
Promotes cardiovascular health
2 people found this helpful
Gluten Free, 1 tablet per day, Non-GMO, LE certified, highly absorbable Quercetin Phytosome Dietary Supplement. Quercetin, a bioflavonoid, supports immune function and inflammatory response while promoting cardiovascular health and endothelial health. Our Bioquercetin is absorbed 50 times better than traditional quercetin, making it ideal for resolving inflammation and bolstering cardiovascular health.
7.5
Eases hay fever symptoms
1 people found this helpful
I take Quercetin for my seasonal hay fever, and it considerably eases my symptoms. It has a good composition and the capsules are small, making them easy to consume.
6
Promotes cardiovascular health
35 people found this helpful
When taking zinc, it's beneficial to also take quercetin, as it enables zinc to enter cells, halting viral replication. This bioflavonoid enhances immune function and inflammatory responses while supporting cardiovascular health and endothelial integrity. It mitigates oxidative processes and can help reduce allergic reactions. I find its effects particularly notable for overall wellness.
7.5
Effective supplement
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.
References
- Ji K, Han M, Yang M, Xu Q, Zhang Y. Integrated meta-analysis and network pharmacology analysis: evaluation of Zhigancao decoction as treatment for diabetic cardiomyopathy. Front Cardiovasc Med. 2025;12:1454647. doi:10.3389/fcvm.2025.1454647
- Shamsi M, Mohammadzadeh G, Hatami M, Roshanazadeh M, Noor-Behbahani M, et al. Dual Modulation of Canonical and Non-canonical TGF-β/ROS/Erk1/2 Pathways: Synergistic Activation of Nrf-2 and Antioxidant Enzymes (SOD1, GPx, HO-1) by Quercetin Loaded in Solid Lipid Nanoparticles and Curcumin in Atherosclerosis Therapy. Iran J Pharm Res. 2024;23:e151428. doi:10.5812/ijpr-151428
- Wang L, Lin S, Wei Q, Li T, Mo Q, et al. Preventive Administration of Quercetin Promotes Survival and Reduces Adverse Ventricular Remodeling after myocardial infarction through facilitating M2-like macrophage polarization. Int Immunopharmacol. 2025;151:114296. doi:10.1016/j.intimp.2025.114296
- Zheng G, Cao X, Jing Y, Wang L, Yan R, et al. An integrative approach for mechanistic insights into the atherosclerotic plaque-stabilizing properties of Danggui Buxue decoction. J Ethnopharmacol. 2025;343:119450. doi:10.1016/j.jep.2025.119450
- Domingos AE, Breves CMDC, Boa LF, de Souza IIA, Maciel L, et al. Quercetin Reduces the Susceptibility to Cardiac Reperfusion Arrhythmias in Ovariectomized Rats. Mol Nutr Food Res. 2025;69:e202400284. doi:10.1002/mnfr.202400284
- Manikanta K, NaveenKumar SK, Hemshekhar M, Thushara RM, Mugesh G, et al. Quercetin inhibits platelet activation and ER-stress mediated autophagy in response to extracellular histone. Phytomedicine. 2025;138:156386. doi:10.1016/j.phymed.2025.156386
- 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
- Kasahara K, Kerby RL, Aquino-Martinez R, Evered AH, Cross TL, et al. Gut microbes modulate the effects of the flavonoid quercetin on atherosclerosis. NPJ Biofilms Microbiomes. 2025;11:12. doi:10.1038/s41522-024-00626-1
- Mahyar M, Ghadirzadeh E, Nezhadnaderi P, Moayedi Z, Maboud P, et al. Neuroprotective effects of quercetin on hippocampal CA1 neurons following middle cerebral artery ischemia‒reperfusion in male rats: a behavioral, biochemical, and histological study. BMC Neurol. 2025;25:9. doi:10.1186/s12883-024-04017-z
- Mkhize SA, Nthlane RA, Xhakaza SP, Verhaert PD, Baijnath S, et al. Decreased blood pressure with acute administration of quercetin in L-NAME-induced hypertensive rats. Basic Clin Pharmacol Toxicol. 2025;136:e14113. doi:10.1111/bcpt.14113
- 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
- Chen J, Lyu X, Yuan Q, Qin C, Yu H, et al. Dynamic and quantitative assessment of quercetin for cardiac oxidative stress injury prevention using sensitive cardiomyocyte based biosensing. Biosens Bioelectron. 2025;271:117045. doi:10.1016/j.bios.2024.117045
- Scalise M, Cianflone E, Quercia C, Pagano L, Chiefalo A, et al. Senolytics rejuvenate aging cardiomyopathy in human cardiac organoids. Mech Ageing Dev. 2025;223:112007. doi:10.1016/j.mad.2024.112007
- Goshovska Y, Pashevin D, Goncharov S, Lapikova-Bryhinska T, Lisovyi O, et al. Quercetin is a potential therapy for post-infarction NETosis formation. Naunyn Schmiedebergs Arch Pharmacol. 2025;398:5705. doi:10.1007/s00210-024-03602-w
