Quercetin Phytosome®
Non-Nutrient / Non-BotanicalBrand: Thorne
Net Contents
60 Capsule(s)
Serving Size
1 Capsule(s)
Servings Per Container
Not specified
Supplement Form
Capsule
Bar Code (UPC/SKU)
6 93749 00435 6
Product Version
SB335 LSB33503
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
Single-ingredient formula listed in Supplement Facts.
Label includes a proprietary blend, so some individual amounts are not itemized.
Label states: Gluten-Free.
This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.
Allergen Guide
Free From
- Gluten
Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.
Supplement Facts
Serving Size: 1 Capsule(s) · 2–3 per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| Quercetin Phytosome Complex | 250 mg | — |
| Sophora japonica concentrate | — | — |
| Phospholipid(Sunflower) | — | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested use: Take 1 capsule two to three times daily with meals or as recommended by your health-care practitioner.
Warnings & Precautions
Precautions re: All Other
Tamper evident: Use only if bottle is sealed.
Precautions re: Pregnant or Nursing or Prescription Medications
If pregnant, consult your health-care practitioner before using this product.
Storage
Storage
Store tightly sealed in a cool, dry place.
Formulation
Formulation re: Does NOT Contain
Gluten free
FDA Statements
FDA Statement of Identity
Dietary Supplement
FDA Disclaimer Statement
This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Other Label Statements
General Statements: All Other Content
Respiratory support Foundational
Seals/Symbols
Gluten free
General Statements: All Other Content
T exclusive
General: Product/Version Code
SB335 LSB33503
Manufacturer & Distributor
Manufacturer
Thorne Research, Inc.
1-800-228-1966
Market Reference
Quercetin Phytosome Thorne
Thorne4.7(1900)$46.00Thorne 60 Capsules
Mayo Clinic Store4.8(536)$54.00Quercetin Phytosome
ThorneVet$46.00Thorne Quercenase Quercetin Phytosome Supplement with Bromelain
Gulf Shores Family Pharmacy$54.00OurKidsASD.com ResveraCel 60 Capsules Thorne
Target4.7(1500)$60.00Thorne Curcumin Phytosome
Thorne4.8(2000)$68.00Curcumin Phytosome by Thorne, 30 Capsules
Thorne4.8(66)$36.00Curcumin Phytosome by Thorne, 60 Capsules
Thorne4.8(2100)$64.00
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
The Vitamin Shoppe
4.6 (247)Vitamin & supplements store
275 E Altamonte Dr #1040, Altamonte Springs, FL 32701, United States
PureFormulas
4.7 (1088)Vitamin & supplements store
11800 NW 102nd Rd #2, Medley, FL 33178, United States
Nature's Dynamics
4.9 (103)Vitamin & supplements store
3802 Silver Star Rd, Orlando, FL 32808, United States
Nature's Market & Fitness
4.6 (118)Vitamin & supplements store
3074 Curry Ford Rd, Orlando, FL 32806, United States
GNC
4.2 (45)Vitamin & supplements store
3709 Lake Emma Rd, Lake Mary, FL 32746, United States
NutriVita Suplementos
4.7 (51)Vitamin & supplements store
168 SE 1st St #502a, Miami, FL 33131, United States
Natural Vitamins
4.4 (42)Manufacturer
4400 NW 133rd St, Opa-locka, FL 33054, United States
The Vitamin Shoppe
4.6 (272)Vitamin & supplements store
3807 E Colonial Dr, Orlando, FL 32803, United States
Research & Studies
… Approach to Prioritize Compound‐Targeted Conditions in the Nutraceutical Space: Case Study of QuercefitTM (Quercetin Phytosome) Toward Unbalanced Lipid …
L Lili, S Smith, L Kunces, R Antonella… - Molecular Nutrition & …, 2025 - Wiley Online Library
… Funding: This study included authors funded by Indena SpA and Thorne HealthTech, Inc. … profiles, confirming health benefits. This study highlights quercetin's known potential in …
2025Quercetin LipoMicel—a novel delivery system to enhance bioavailability of quercetin
J Solnier, C Chang, K Roh, M Du, YC Kuo… - … of Natural Health …, 2021 - researchgate.net
… quercetin in a novel Quercetin LipoMicel delivery system in healthy adult volunteers by comparing it with free quercetin … ) were manufactured and purchased from Thorne Research Inc. (…
202118 citationsPhytosome technology: a novel breakthrough for the health challenges
P Kalaivani, R Kamaraj - Cureus, 2024 - cureus.com
… The study found that subjects under supplementation improved … the quercetin group and 96.5% in the placebo group. The subjects who received the Quercetin Phytosome® supplement …
202420 citationsEffects of intermittent senolytic therapy on bone metabolism in postmenopausal women: a phase 2 randomized controlled trial
JN Farr, EJ Atkinson, SJ Achenbach, TL Volkman… - Nature Medicine, 2024 - nature.com
… natural flavanols (for example, quercetin (Q) and fisetin) 9 … empiric basis by otherwise healthy aging individuals and have … consecutive days; Quercetin Phytosome, Thorne Research). D …
2024114 citationsUS Sales of Herbal Supplements Increase by 9.7% in 2021.
T Smith, H Resetar, C Morton - HerbalGram, 2022 - search.ebscohost.com
… health focuses of quercetin supplements (… quercetin's potential effects on COVID-19. In a pilot study, Di Pierro et al found that quercetin supplementation (Quercetin Phytosome®; Thorne…
202248 citationsBest Quercetin Supplements for MCAS and Histamine Intolerance (2026 Buyer's Guide) Your complete guide to the most researched mast cell stabilizer
P Nathaniel - mynourishly.com
… If you want stronger absorption and already tolerate supplements well, Thorne Phytosome … only and does not constitute medical advice. Quercetin supplements interact with several …
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2018-10-25. DSLD Label ID: 182285. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.
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