How is this different then general quercetin?

Thorne's Quercetin Phytosome utilizes the advanced technology of phytosome complexes. Phytosome complexes are created by a patented process that binds a designated botanical extract to a phospholipid. Phospholipids are readily absorbed key components of cell membranes, and when complexed with a botanical, the phospholipid increases the absorbability of the botanical to which it is combined. In Thorne’s Quercetin Phytosome, quercetin is combined with plant-based phospholipids to create a phytosome complex that significantly enhances the absorption of the quercetin through the cell membrane, compared to quercetin by itself.

What is the standardized quercetin phytosome content of thorne quercetin phytosome from flower extract?

I emailed Thorne and this was their reply: It is approximately 40% quercetin, so the product contains approximately 100mg of quercetin. Quercetin phytosome demonstrates 20x absorption vs standard quercetin in clinical studies.

Is the L-leucine derived from corn? Is this product free of corn?

The leucine is derived from duck feathers, which are not pulled from the ducks but collected as they fall out. None of Thorne’s finished products contain corn, however, occasionally a product might contain an ingredient derived from corn. These are purified and considered non-allergenic. The quercetin in Thorne's Quercetin Phytosome supplement is derived from Saphora japonica, which is a plant. The phospholipid complex is derived from sunflower.

What Color is the powder suppose to be?

The powder in the capsules of Thorne’s Quercetin Phytosome can vary in color from pale yellow to orange, and can sometimes have a speckled or slightly mottled appearance.

Desertcart Logo

Deliver to Vanuatu

For best experience Get the App

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan
KOREA

Customer Services

About Us

Customer Support

Description

🛡️ Elevate your immunity game with the pro-approved Quercetin Phytosome!

AGE GRACEFULLY - Combats oxidative stress to maintain vibrant cellular health
CERTIFIED PURITY - Third-party tested to guarantee label accuracy and contaminant-free quality
BREATHE EASY FORMULA - Supports a balanced inflammatory response in your respiratory system
ELITE IMMUNE DEFENSE - Boosts diverse immune cells for optimized protection all year long
TRUSTED BY CHAMPIONS - Preferred by 100+ pro sports teams and top healthcare practitioners

THORNEQuercetin Phytosome delivers a scientifically advanced phytosome complex designed to enhance immune function, support respiratory health, and reduce seasonal allergy symptoms. With third-party certification ensuring purity and potency, this 60-capsule formula is trusted by elite athletes and healthcare professionals alike, making it a must-have for proactive wellness and healthy aging.

Reviews

D**R

Another Quality product as with nearly all Thorne products

Another Quality product as with nearly all Thorne products!I trust Thorne for great research, excellent quality ingredients and a fair price for supplements that actually have proven health benefits.

14.09.2025

M**R

Detox

Exelente Quercetina para limpiar el cuerpo de celulas que no son buenas y mas. Detox!!

11.09.2025

K**Z

Meds

They work!

18.08.2025

K**N

Works Great!!

Works great!!

19.06.2025

L**A

Makes feel good, healthy and not jittery kind of feeling..

I don’t know what it does but I feel very good almost immediately after I take it and the good feeling last a while. Initially 2 capsules at once then just one daily for maintenance.

17.03.2025

A**R

Remedio para la alergia

Todavia estoy investigando como me funcionan. Necesito por lo menos tomarme la mitad de las pastillas para poder determinar su eficacia. Hasta ahora parecen ser efectivas.

16.08.2022

T**.

Recommended by my Doctor

I recently had a big flare up with my prostate. Almost waited too long to go to the doctor, and was very sick for several weeks.Once he got me headed in the right direction, he recommended that I stay on this.

1.11.2024

S**H

Thorne Quercetin Phytosome

Great product as all Thorne products . I fewl it helps me not get as sick . Do your research as we get into winter for what I refer to. Fast delivery Highly recommend product & vendor Thank you

18.11.2024

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.

VT17808

Duties & taxes incl.

Vanuatustore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

ChatGPT - opens in a new tab Perplexity - opens in a new tab Claude - opens in a new tab Grok - opens in a new tab Google AI - opens in a new tab

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Pooja R.

The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.

1 week ago

View all Trustpilot reviews

Allergen Information	Peanut Free, Egg Free, Soy Free, Dairy Free, Tree Nut Free, Fish Free, Shellfish Free
Item Weight	2.08 ounces
Item Dimensions	2.09 x 2.09 x 3.72 inches
Unit Count	60.0 Count

THORNEQuercetin Phytosome - Exclusive Phytosome Complex for Immune Health, Respiratory Support, and Seasonal Allergy Relief* - 60 Capsules

Description

Specifications

Have a Question? See What Others Asked

Reviews

Common Questions