Quercetin Phytosome
Quercetin Phytosome scores 91/100 (A grade). Strengths: 1 ingredients with Grade B evidence.
Score Breakdown
Formulate scores every product across six weighted dimensions. Each dimension is graded independently — hover or tap to see what drove each component.
Ingredients per Serving
| Ingredient | Amount |
|---|---|
| Quercetin Phytosome (Phospholipid complex from Sunflower) | 250 mg |
Certifications & Testing
Other Ingredients
Hypromellose (derived from cellulose) capsule, Leucine, Microcrystalline Cellulose, Silicon Dioxide
Recommended Use
Take 1 capsule two to three times daily with meals or as recommended by your health-care practitioner.
Warnings
ALLERGY WARNING This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients. PREGNANCY If pregnant, consult your health-care practitioner before using this product. INTERACTIONS There are no known adverse interactions or contraindications at publication date.
Frequently Asked Questions
What is Thorne Quercetin Phytosome's Formulate score?
Thorne Quercetin Phytosome scores 91 out of 100 (grade A) on Formulate's ingredient-level rubric, which weighs evidence quality, dose accuracy, bioavailability, transparency, safety, and manufacturing practices.
What's in Thorne Quercetin Phytosome?
Each serving contains Quercetin Phytosome (Phospholipid complex from Sunflower) (250 mg). Serving size: 1 Capsules. 60 servings per container.
How do I take quercetin phytosome?
Take 1 capsule two to three times daily with meals or as recommended by your health-care practitioner.
Is Thorne Quercetin Phytosome third-party tested?
Thorne lists the following certifications and testing for this product: NSF Certified, Gluten Free, Dairy Free, Soy Free, Thorne Verified, Natural Flavors, Natural Colors, GMP Certified.
Related Supplements
Track quercetin phytosome in your stack
The Formulate desktop app lets you build a personalized supplement stack, flag dose overlaps and interactions, and keep every product scored against the latest evidence.
Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.