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.

Thorne Research Quercetin Phytosome 60 Capsules

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

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

Help Track order

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20612 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered 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 Iceland.

Secure transaction

Description

🌟 Unlock Your Health Potential with Quercetin!

TRUSTED QUALITY - Manufactured by a leader in nutritional supplements.
SUSTAINABLE CHOICE - 100% vegetarian capsules for conscious consumers.
COMPACT CONVENIENT - Lightweight design for easy storage and travel.
ELEVATE YOUR WELLNESS - Harness the power of Quercetin for immune support.
PRECISION FORMULATION - Expertly crafted by Thorne Research for optimal absorption.

Thorne Research's Quercetin Phytosome offers a vegetarian-friendly supplement designed to support immune health, featuring 60 capsules in a compact size for easy consumption. Crafted with precision, this product ensures optimal absorption and is backed by a trusted name in the supplement industry.

Specifications

ASIN	B0797DQTVZ
Age Range Description	Adult
Allergen Information	Gluten Free
Best Sellers Rank	#125,660 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #788 in Combination Multivitamins & Minerals
Brand	THORNE
Customer Reviews	4.7 out of 5 stars 2,272 Reviews
Diet Type	Gluten Free
Dosage Form	Capsule
Flavor	Unflavoured
Flavour	Unflavoured
Item Dimensions	5.3 x 5.3 x 9.4 Centimeters
Item Form	Capsule
Item Weight	0.13 Pounds
Manufacturer	Thorne Research
Manufacturer Part Number	SB335
Model number	SB335
Net Quantity	1.00 Count
Number of Items	60
Primary Supplement Type	Quercetin
Product Benefits	Energy Management
Special Ingredients	Food Safe
UPC	693749004356
Unit Count	1.00 Count
Usage	Body

Reviews

J**Y

Very good product

Excellent product

22.11.2025

A**R

It works

I use it as a natural anti inflammatory. Really helps me if I feel a cough or cold coming on.

30.07.2026

A**D

مميز

ممتاز

7.06.2026

N**N

Great stuff

Ok so my histamine levels were over 7867 in highest ref range 959 /7 times the norm basically/. The bloating was one thing, but every morning I felt like I have something stuck in my throat that I desperately want to caugh out, but couldn’t. ChatGpt told me to get Quercitin and Vitamin C. I’ve heard about this brand Thorne that athletes use so even tho more expensive than other brands - I gave it a try. Long and behold the sensation in the throat IS GONE. I don’t know the histamine levels, but it is obvious this works

2.07.2026

M**I

Good additon to maintain health

Great quality product whilst a little pricey, compliments my other vitamins.

1.09.2026

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

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews

20612 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered 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 Iceland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago