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Sinus & Seasonal

product on market Capsule LES Labs Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 20% of ingredients have research evidence
B Label Compliance Grade

What the Evidence Says

AI-generated · Qwen 3.6 · methodology

Quercetin, bromelain, and butterbur are supported by moderate evidence for managing upper respiratory and allergic symptoms. Stinging nettle and bioperine further assist in inflammatory response and nutrient absorption. Overall, clinical evidence for this specific combination is limited.

AI-generated summary based on research evidence. Not medical advice.

Label

Product Label

Label for Sinus & Seasonal
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Capsule(s)
Serving Size
60
Servings
Other Combinations
Product Type
20%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

200 mg
Market median: 500.0mg (283 products) 174 studies (A:0, B:62)
Stinging Nettle root extract
150 mg
50 mg
Market median: 200.0mg (136 products) 3 studies — no high-quality reviews
Butterbur Root Extract
50 mg
Bioperine Black Pepper Fruit Extract
2 mg

Other Ingredients

Hypromellose Rice Bran, Powder
Claims

Label Claims — Verification

Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested Use: Take one (1) capsule one to three times daily or as directed by a physician.

Warnings & Precautions

Caution: Keep out of reach of children.

Pregnant or lactating women and those undergoing treatment for a medical condition should consult a physician before taking this supplement.

Do not use if outer seal is missing or damaged.

Formulation Notes

Made with non-GMO ingredients

Dietary Supplement with Quercetin, Butterbur & Nettle Root

Supports healthy histamine levels Helps promote seasonal comfort Supports sinus and nasal health

Additional Information

Store in a dry, cool place.

Manufactured in the USA cGMP Certified Manufacturing

Metadata

Product Details

UPC / SKU0 91037 75859 0
DSLD Entry Date2022-10-24
Product TypeOther Combinations
FormCapsule
DSLD ID276529
Data Updated2026-04-11
Research

Research Evidence

184
Research Sources
55
Avg Quality
91
Systematic Review
75
Meta Analysis
7
Rct
7
Clinical Trial
2
Cochrane Review
1
Openfda Safety
B Treatment of gouty arthritis with traditional Chinese medicine decoction: Meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2024 PubMed DOI
B Effects of quercetin supplementation on lipid profile: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2017 PubMed
B Dietary polyphenols and the risk of metabolic syndrome: a systematic review and meta-analysis
Meta Analysis BMC endocrine disorders 2024 PubMed DOI
B Quercetin and endurance exercise capacity: a systematic review and meta-analysis
Meta Analysis Medicine and science in sports and exercise 2011 PubMed DOI
B Dietary flavonoid intake and smoking-related cancer risk: a meta-analysis
Meta Analysis PloS one 2013 PubMed DOI
B Clinical efficacy evaluation and potential mechanism prediction on Guizhi-Shaoyao-Zhimu decoction in the treatment of gouty arthritis based on meta-analysis, network pharmacology analysis, and molecular docking
Meta Analysis Medicine 2023 PubMed DOI
B A Systematic Review: Quercetin-Secondary Metabolite of the Flavonol Class, with Multiple Health Benefits and Low Bioavailability
Systematic Review International journal of molecular sciences 2024 PubMed DOI
B Dietary flavonoid for preventing colorectal neoplasms.
Cochrane Review The Cochrane database of systematic reviews PubMed DOI
B Flavonoids for treating venous leg ulcers.
Cochrane Review The Cochrane database of systematic reviews PubMed DOI
B The effects of quercetin supplementation on lipid profiles and inflammatory markers among patients with metabolic syndrome and related disorders: A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Critical reviews in food science and nutrition 2020 PubMed DOI
View all evidence for Quercetin →
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.