What makes Thorne supplements high quality?

Thorne produces high-quality supplements through rigorous testing, well-researched ingredient sourcing, and strict manufacturing standards. We avoid unnecessary additives, binders, and fillers that may interfere with nutrient absorption.

How does Thorne test its supplements for quality?

To confirm the purity of our ingredients, the potency of our formulas, and the absence of all contaminants, we carry out a minimum of four rounds of testing on every product we manufacture. 100+ Thorne employees are dedicated to ensuring quality.

Are Thorne supplements clinically tested and safe?

Thorne partners with researchers and conducts clinical trials to support the efficacy of our products. Our team of doctors and medical experts substantiate each ingredient in every formula based on extensive clinical research and medical literature.

Why are Thorne products more expensive than other supplements?

When it comes to the health of our customers, we never settle. Thorne products may be priced higher than some others because of our commitment to quality at every step. We don’t simply meet the standard in dietary supplements — we set the standard.

Where are Thorne supplements made and where are the ingredients sourced from?

Located in South Carolina, Thorne manufactures supplements in the USA using globally sourced ingredients. When it comes to ingredient sourcing, we seek out only the highest-quality ingredients, selecting each one for its purity and effectiveness.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Thorne Quercetin Phytosome, 60 Capsules

Product ID: 85784120

Details

Age range (description)
Adult
Brand
THORNE
Diet type
Gluten Free
Flavour
Apple
Item dimensions L x W x H
5.3 x 5.3 x
Item form
Capsule

🌻20x bioavailability boost

💊250mg pure quercetin phytosome

🧪GMP-certified, science-backed

2250 Kč

Duties & taxes included

In stock

Sold byAmazon Czech RepublicDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Czech Republic.

Secure transaction

Description

🌟 Unlock elite immune defense with Thorne’s ultra-absorbable Quercetin Phytosome!

CLEAN PURE FORMULA - 250mg per capsule with zero gluten, soy, dairy, shellfish, or fish—clean label for mindful wellness.
FLEXIBLE DAILY DOSING - Take 1 capsule 2-3 times daily with meals—customize your wellness routine effortlessly.
NEXT LEVEL ABSORPTION - Up to 20x more bioavailable quercetin phytosome for maximum immune support.
PLANT POWERED POTENCY - Harnesses natural flavonoids from fruits and tea for antioxidant-rich cellular health.
TRUSTED QUALITY ASSURANCE - Crafted in GMP-certified facilities with third-party testing to guarantee purity and safety.

Thorne Quercetin Phytosome delivers 250mg of a sunflower-derived phospholipid complex per capsule, offering up to 20 times greater bioavailability than standard quercetin. This gluten-free, clean-label supplement supports immune health and cellular antioxidant defense, backed by GMP-certified manufacturing and rigorous third-party testing for purity and safety.

Specifications

ASIN	B0797DQTVZ
Age Range Description	Adult
Allergen Information	Contains: Gluten Free
Benefits	Immune Support
Best Sellers Rank	31,641 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 22 in Quercetin Antioxidant Supplements
Brand	THORNE
Brand Name	THORNE
Customer Reviews	4.7 out of 5 stars 2,268 Reviews
Diet Type	Gluten Free
Dosage Form	Capsule
Flavour	Apple
Item Dimensions	5.3 x 5.3 x 9.4 centimetres
Item Form	Capsule
Item Highlight	Advanced Phytosome Complex for Superior Absorption, Flavonoid Formula
Item Weight	59 g
Item form	Capsule
Item weight	59 g
Manufacturer	Thorne Research
Manufacturer Part Number	SB335
Model Number	SB335
Number of Items	1
Primary Supplement Type	B-Complex
Primary supplement type	B-Complex
Specific Uses For Product	Cellular Health,Immune,Immune Support,Inflammatory Response
UPC	693749004356
Unit Count	60.00 count
Unit count	60.00 count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

2250 Kč

Duties & taxes included

In stock

Sold byAmazon Czech RepublicDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Czech Republic.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews