Overview
SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8
USERS' SCORE
Good
Based on 3 Reviews
8.4
Supplement Facts
Serving Size: 1 Vegetarian Capsule
Amount Per Serving
%DV
Vitamin C (from ascorbic acid, camu-camu berry extract)
30 mg
33%
Quercetin (as quercetin dihydrate)
250 mg
**
Optimized Food Blend[onion (bulb) (extracts), bitter orange bioflavonoids (peel and fruit), apple (fruit)
220 mg
**
Camu-camu extract (wildcrafted berry)
50 mg
**
Top Medical Research Studies
9
Quercetin reduces sinus inflammation
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.
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.
Read More
8
Quercetin enhances mucus transport
We explored how quercetin might help sinusitis by boosting chloride secretion and improving ciliary beat frequency in cultured sinonasal cells. In our analysis, this compound showed notable ability to enhance these functions, suggesting it could promote better mucus clearance from the sinuses.
The study involved primary cultures of human and murine sinonasal epithelial cells and demonstrated quercetin's effectiveness in increasing chloride transport. This implies potential therapeutic benefits for individuals suffering from chronic rhinosinusitis.
The study involved primary cultures of human and murine sinonasal epithelial cells and demonstrated quercetin's effectiveness in increasing chloride transport. This implies potential therapeutic benefits for individuals suffering from chronic rhinosinusitis.
Read More
7
We explored how quercetin affects sinusitis by examining its impact on human mast cells. Specifically, we focused on the expression of inflammatory cytokines after stimulating the cells.
Quercetin showed promise by reducing the gene expression and production of key inflammatory signals like TNF-alpha and IL-6. It did this by dampening the activation of NF-kappaB and p38 MAPK pathways, both crucial for inflammation.
This suggests that quercetin may be beneficial for managing conditions like sinusitis linked to mast cell activity.
Quercetin showed promise by reducing the gene expression and production of key inflammatory signals like TNF-alpha and IL-6. It did this by dampening the activation of NF-kappaB and p38 MAPK pathways, both crucial for inflammation.
This suggests that quercetin may be beneficial for managing conditions like sinusitis linked to mast cell activity.
Read More
Most Useful Reviews
9
Quick relief from sinusitis
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!
Read More
7.5
Relieved sinusitis symptoms
3 people found this helpful
For allergies, I occasionally take quercetin, which works well for my rhinitis and sinusitis. Breathing improves a week after I begin the treatment. I wish you all good health.
Read More
7.5
Boosted immunity
Quercetin is beneficial for strengthening immunity and combating allergies and sinusitis. Each capsule contains vitamin C to enhance absorption.
Read More
Medical Researches
SCIENTIFIC SCORE
Moderately Effective
Based on 3 Researches
8
- All Researches
9
Quercetin reduces sinus inflammation
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.
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.
Read More
8
Quercetin enhances mucus transport
We explored how quercetin might help sinusitis by boosting chloride secretion and improving ciliary beat frequency in cultured sinonasal cells. In our analysis, this compound showed notable ability to enhance these functions, suggesting it could promote better mucus clearance from the sinuses.
The study involved primary cultures of human and murine sinonasal epithelial cells and demonstrated quercetin's effectiveness in increasing chloride transport. This implies potential therapeutic benefits for individuals suffering from chronic rhinosinusitis.
The study involved primary cultures of human and murine sinonasal epithelial cells and demonstrated quercetin's effectiveness in increasing chloride transport. This implies potential therapeutic benefits for individuals suffering from chronic rhinosinusitis.
Read More
7
We explored how quercetin affects sinusitis by examining its impact on human mast cells. Specifically, we focused on the expression of inflammatory cytokines after stimulating the cells.
Quercetin showed promise by reducing the gene expression and production of key inflammatory signals like TNF-alpha and IL-6. It did this by dampening the activation of NF-kappaB and p38 MAPK pathways, both crucial for inflammation.
This suggests that quercetin may be beneficial for managing conditions like sinusitis linked to mast cell activity.
Quercetin showed promise by reducing the gene expression and production of key inflammatory signals like TNF-alpha and IL-6. It did this by dampening the activation of NF-kappaB and p38 MAPK pathways, both crucial for inflammation.
This suggests that quercetin may be beneficial for managing conditions like sinusitis linked to mast cell activity.
Read More
User Reviews
USERS' SCORE
Good
Based on 3 Reviews
8.4
- All Reviews
- Positive Reviews
- Negative Reviews
9
Quick relief from sinusitis
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!
Read More
7.5
Relieved sinusitis symptoms
3 people found this helpful
For allergies, I occasionally take quercetin, which works well for my rhinitis and sinusitis. Breathing improves a week after I begin the treatment. I wish you all good health.
Read More
7.5
Boosted immunity
Quercetin is beneficial for strengthening immunity and combating allergies and sinusitis. Each capsule contains vitamin C to enhance absorption.
Read More
Frequently Asked Questions
7.5
Relieved sinusitis symptoms
3 people found this helpful
For allergies, I occasionally take quercetin, which works well for my rhinitis and sinusitis. Breathing improves a week after I begin the treatment. I wish you all good health.
9
Quick relief from sinusitis
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!
7.5
Boosted immunity
Quercetin is beneficial for strengthening immunity and combating allergies and sinusitis. Each capsule contains vitamin C to enhance absorption.
9
Quercetin reduces sinus inflammation
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.
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.
8
Quercetin enhances mucus transport
We explored how quercetin might help sinusitis by boosting chloride secretion and improving ciliary beat frequency in cultured sinonasal cells. In our analysis, this compound showed notable ability to enhance these functions, suggesting it could promote better mucus clearance from the sinuses.
The study involved primary cultures of human and murine sinonasal epithelial cells and demonstrated quercetin's effectiveness in increasing chloride transport. This implies potential therapeutic benefits for individuals suffering from chronic rhinosinusitis.
The study involved primary cultures of human and murine sinonasal epithelial cells and demonstrated quercetin's effectiveness in increasing chloride transport. This implies potential therapeutic benefits for individuals suffering from chronic rhinosinusitis.
7
We explored how quercetin affects sinusitis by examining its impact on human mast cells. Specifically, we focused on the expression of inflammatory cytokines after stimulating the cells.
Quercetin showed promise by reducing the gene expression and production of key inflammatory signals like TNF-alpha and IL-6. It did this by dampening the activation of NF-kappaB and p38 MAPK pathways, both crucial for inflammation.
This suggests that quercetin may be beneficial for managing conditions like sinusitis linked to mast cell activity.
Quercetin showed promise by reducing the gene expression and production of key inflammatory signals like TNF-alpha and IL-6. It did this by dampening the activation of NF-kappaB and p38 MAPK pathways, both crucial for inflammation.
This suggests that quercetin may be beneficial for managing conditions like sinusitis linked to mast cell activity.
References
- 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
- Zhang S, Smith N, Schuster D, Azbell C, Sorscher EJ, et al. Quercetin increases cystic fibrosis transmembrane conductance regulator-mediated chloride transport and ciliary beat frequency: therapeutic implications for chronic rhinosinusitis. Am J Rhinol Allergy. 2011;25:307. doi:10.2500/ajra.2011.25.3643
- Min YD, Choi CH, Bark H, Son HY, Park HH, et al. Quercetin inhibits expression of inflammatory cytokines through attenuation of NF-kappaB and p38 MAPK in HMC-1 human mast cell line. Inflamm Res. 2007;56:210.
