Quercetin 300
100/100
This product looks safe
- No ingredients exceed tolerable upper intake levels
- 67% of ingredients have research evidence
A
Label Compliance Grade
Product Label
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Label Data
1 Capsule(s)
Serving Size
30
Servings
Other Combinations
Product Type
67%
Evidence Coverage
Supplement Facts — Evidence Check
Vitamin C
150 mg
(167% DV)
93.8 mg NE
(625% DV)
📊 6.3× RDA — above typical dose (UL: 1000 mg)
📚 177 studies (Tier A: 3, B: 90)
600 mg
📊 Market median: 500.0mg (283 products)
📚 173 studies (Tier A: 0, B: 62)
Other Ingredients
Hydroxypropyl Methylcellulose
Microcrystalline Cellulose
Silicon Dioxide
L-Leucine
Label Claims — Verification
❓
All Other
❓
Structure/Function
All Other (99% of products)
Structure/Function (84% of products)
Nutrient (23% of products)
Qualified Health (1% of products)
Target Groups
Adult (18 - 50 Years)
Product Information
📋 Directions for Use
Suggested Use As a dietary supplement, 1 or 2 capsules one to three times daily with meals, or as directed by a healthcare practitioner.
⚠️ Warnings & Precautions
Not labeled for sale in California.
🧪 Formulation Notes
High quality quercetin, derived from a non-citrus, hypoallergenic plant source, stabilized with additional antioxidants so as not to auto-oxidize (degrade spontaneously).
Stabilized with Antioxidants
Additional Information
Keep in a cool, dry place, tightly capped.
Product Details
UPC / SKU
7 13947 50060 0
DSLD Entry Date
2022-01-22
Product Type
Other Combinations
Form
Capsule
Brand
NutriCology
DSLD ID
258706
Data Updated
2026-04-11
Research Evidence
184
Research Sources
55
Avg Quality Score
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
B
Effects of quercetin supplementation on lipid profile: A systematic review and meta-analysis of randomized controlled trials
B
Dietary polyphenols and the risk of metabolic syndrome: a systematic review and meta-analysis
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
B
A Systematic Review: Quercetin-Secondary Metabolite of the Flavonol Class, with Multiple Health Benefits and Low Bioavailability
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