Quercetin Complete

A clinically studied Quercetin Phytosome for immune health, seasonal wellness, respiratory support, and athletic performance.*

  1. 52.8X better absorbed than standard Quercetin — Quercefit® Phytosome technology delivers 250,000 vs. 4,800 AUC in head-to-head clinical testing*
  2. Quercefit® is backed by 10+ clinical studies on immune support, allergy-symptom relief (reductions of up to 70% reported), and athletic performance (an 11.3% reduction in triathlon completion time).*
  3. Complete formula with Vitamin C, Bromelain, and Zinc — each ingredient contributes to Quercetin absorption, utilization, and overall formula effectiveness.*

60 Capsules · 60 Servings

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  • 50 times higher absorption and bioavailability than standard Quercetin, providing proven health benefits.*
  • Backed by clinical research to support immune function, respiratory health, seasonal wellness and athletic performance.*
  • With Vitamin C and Bromelain as co-factors, Quercetin Complete optimizes the absorption and utilization of Quercetin.

Quercetin Complete is a high-performance Quercetin formulation derived from a Quercetin phytosome. In clinical studies, the Quercetin phytosome, Quercefit®, had a 50x higher absorption rate than standard Quercetin, supported by 7 clinical studies showing proven health benefits. The formulation is also enhanced with Quercetin cofactors, Vitamin C & Bromelain, and a whole serving of Zinc, which has a codependent relationship with Quercetin.*

Quercefit®is a registered trademark of Indena, S.p.A, Italy

  • Supports immunity*
  • Supports allergy relief*
  • Supports respiratory health*
  • Supports energy & endurance*
  • Improves inflammation reduction*
  • Supports heart health*
  • Quercefit® Quercetin Physotome
  • Bromelain
  • Vitamin C
  • Zinc picolinate

Take one capsule one to two times daily, or as directed by a healthcare provider. Best taken with food.

Maximum Deliverability to Bloodstream

We use patented phytosome technology to solve the Quercetin absorption problem. The Quercetin Phytosome Quercefit® is clinically proven to have 52.8X better deliverability and absorption to the bloodstream and cells. 

Citation: Riva A, Ronchi M, Petrangolini G et al. Improved oral absorption of quercetin from Quercetin Phytosome®, a new delivery system based on food grade lecithin. Eur J Drug Metab Pharmacokinet 2019;44:169–77.

The Most Effective Quercetin Formulation

Quercetin Phytosome

The most effective form of Quercetin. 

Zinc Picolinate

Quercetin works with Zinc to deliver Zinc inside of cells.

Vitamin C

Maximizes Quercetin’s overall effectiveness and utilization.

Bromelain

Enzyme that helps Quercetin to absorb into bloodstream. 

Are you looking to unlock the power of Quercetin?

Supports 
Immunity*

Supports 
Allergy Relief*

Supports 
Respiratory Health*

Supports Energy
And Endurance*

Improves Inflammation Reduction*

Supports Heart
Health*

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Clinically Proven To Impact Health

Our Quercetin phytosome, Quercefit®, has been clinically studied and shown to deliver powerful impacts to health.

Supports Immunity & Get Better Fast

The Quercetin Phytosome was shown to reduce catching certain viral infections by 75% and helped people recover 53% faster.

Supports Allergy Symptoms

The Quercetin phytosome reduced daytime allergy symptoms by up to 51% and nighttime symptoms by up to 70%.*

Supports Lung Function

The Quercetin phytosome was shown to increase Peak Expiatory Flow by 15% and improved PEF variability by 56%.*

Supports Athletic Performance

In controlled human study, the Quercetin phytosome significantly reduced triathlon times by 11.3% in just 2 weeks. The average completion time went from 101.9 min to 90.4 min.*

Research was conducted with the patented Quercetin Phytosome, Quercefit®. 

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

Standards Without Compromise

This formula is crafted with thoughtfully selected ingredients and manufactured to rigorous quality standards.

GMO
Free

Vegan

Gluten
Free

Soy
Free

Thoughtfully formulated. Independently tested.

We prioritize transparent sourcing, thoughtful formulation, and third-party testing standards to help ensure quality, purity, and consistency across our products.

Third-Party Tested

Third-Party Tested

Products are independently tested to verify quality, purity, potency, and ingredient standards.

Thoughtfully Sourced Ingredients

Thoughtfully Sourced Ingredients

We partner with trusted suppliers to select premium ingredients backed by research and rigorous quality standards.

Intentional Formulations

Intentional Formulations

Every formula is designed for ingredient compatibility, bioavailability, and effective dosing.

GMP-Certified Manufacturing

GMP-Certified Manufacturing

Manufactured in GMP-certified facilities that follow established quality control standards.

Third-Party Tested
GMP-Certified Facility
Transparent Sourcing
Practitioner-Informed
Quality-Focused
QuercetinProductTriquetraSupplementsBrandOrderQualitySymptomsCompanyGlass bottles
  • 5 stars: 86 (88%)
  • 4 stars: 9 (9%)
  • 3 stars: 1 (1%)
  • 2 stars: 1 (1%)
  • 1 star: 1 (1%)
I
Irene S.
Excellent Supplement

First I will preface that my experience with supplements is unique and you should combine this with proper diet and exerciese.This company takes bioavailability into account and delivers a synergistic supplement that delivers results.The capsule is a little large, but manageable. My goal is to give my body every chance at fighting off what it needs to, and prevention is always key. I use this for it's proven antioxidant properties and it's combination of other ingredients that all perform synergistically and are vital to health.I highly recommend this product, I believe it is the best source of Quercetin I have taken to date.

N
Nicole N.
Best Quercetin I’ve used yet

I have had nasal allergies my whole life and used just about everything out there - I have tried Quercetin in the past with no real positive results, until I tried this oneTaking the suggested two per day, I saw an improvement by the end of the first week - I was basically never sneezing, and was able to go without taking an antihistamine at night so I could sleep - I am impressed - I also have not experienced any side effects - am hoping the positive experience with this product continues

Z
Zelda M.
Potent immunity supplement with everything you need to help boost your immune system.

For the past few years, I have been trying a number of immunity supplements to boost my health and well-being and help fight the aging process. So, when I saw this supplement from Triquetra that contains among other things Quercetin, Bromelain, Zinc and Vitamin C I knew I had to give it a try. I have done research in the past and have read that those supplement ingredients can help improve your immune system. I like that this supplement contains all those ingredients that help me feel better and look healthier and that they are in such a simple gel capsule form that is very easy to swallow. I like that the form of Quercetin this product uses, Quercetin phytosome Quercefit, absorbs 50 times faster for quicker results. I like that contains all the ingredients for better health and immunity which means I can just take this and get rid of all the other supplements I currently take making my morning pill routine that much simpler. I like how well it's packaged as it had both a safety seal wrap around the lid as well as a seal over the top of the bottle itself. I like how the pills have a gel cap outside that is smooth and soft making them easy to swallow and digest with no bitter or nasty taste or aftertaste. Definitely a potent immune system supplement that will help improve and maintain my overall good health and well-being and I look forward to adding this to my supplement regiment and replacing some of my other ones. 5 out of 5 stars from me on this product.

J
Jonathan O.
Quercetin Supplement. Additional components: Bromelain, Zinc & Vitamin C.

Quercetin, a powerful antioxidant and anti-inflammatory, is often paired with Bromelain, a digestive enzyme, to enhance and facilitate bio-absorption. (Bromelain and Vitamin C may be paired with Querecetin for bio-absorption and to boost the health benefits.)This supplement offers Quercetin as “Quercefit®”. Their offering supplies Quercetin Phytosome, which they claim clinical studies indicate “a 50X higher absorption & bioavailability than standard Quercetin based on a mg to mg comparison. It is the most effective form of Querectin available.” That is very impressive, indeed. Plus, add to that increased absorption & bioavailability aspect, the synergistic qualities of the additional co-factors, Bromelain and Vitamin C.The Supplement Facts, per capsule, notes: 250mg Quercefit®, 200mg Bromelain (2400GDU/Gram), 100mg Vitamin C and 15mg Zinc. Note the quantity of Zinc, it actually provides 136% of DV. So, if you take a multivitamin and/or zinc supplement, you may surpass the upper limits of the recommended dosage range.The product details mentions: “VEGAN, 3RD PARTY TESTED, cGMP MANUFACTURING” and “It is 3rd party tested for over 100+ contaminates and microbials, and it is manufactured in the USA in the highest quality GMP regulated facility.” Unfortunately, the product label does not displays any badges or text attesting to these claims. This negatively impacts the rating.Based on these considerations, this Quercetin/Bromelain supplement appears to be a very credible offering. It receives a 4.25 star rating.

S
Suzy B.

I found another pne that has more of the ingredients than this brand.

L
Larry P.

Very efficiently replaced an order that was received with the glass top severed from the jar and glass in the box with pills and also in the jar with pills.

B
Brandy B.

Quercetin Complete

D
Debra S.

Quercetin Complete

D
Deb

Excited to try these! I just received them yesterday!

S
Shane M.R.
Happy

Happy with our order.
We're feeling great.
Buying more soon

D
D.T.

Its a very good product made Triquetra .

J
Judy

I have not been disappointed in any purchase. I appreciate the use of glass over plastic.

I
Isabella G.
Changed my life!

This product has changed my life in so many ways. I would recommend this to anyone and everyone!!

M
Marianne L.

I am attempting to improve my sense of smell. Not much has improved.

R
Roy A.W.
QuerZinc

Specially Bioactive Phytozome(s)... Super absorbed & utilized.
In conjunction w/Triquetra's solid sound supplements; It's definitely felt and noticed as regards to: energy, stamina, breathing & performance. Also contains Zinc Picolinate and C...

J
Julie

Great products!

T
Tim M.
Most Excellent

I had a mitral valve repair/rebuild back in 04 and have been using Quercetin ever since in an attempt to strengthen my cardiovascular system. I'm glad I finally found Triquetra and do feel their concentrated supplements work much better than the ones you find elsewhere. I've become a regular subscriber to many of Triquetra's supplements, they seem to improve the quality of life at 73 years old.

M
Michael L.
Say goodbye to allergy medicines

I used to use decongestants (nasal sprays & pills) often, especially in the spring. Ever since I started taking Quercetin it is very rare that I need to use them. I take Quercetin for it's anti-inflammatory properties so reduction in "allergic symptoms" makes sense.

J
Jordan C.

Quercetin Complete

A
Anonymous
Got ALLERGIES??

This is my solution to My allergy issues. LOVE IT

L
Luis A.
Quercetin complete arrived very late

I learned of your company from a friend who loves your products, so I ordered mine. A few days passed and nothing was happening, so I email to ask if my order was ok. The reply was that you guys were overwhelmed with orders and my order just got the label printed! Hey, good for you that you have so many orders that you cannot keep up, but that does not excused why my order was then shipped on the slowest way possible! It took then another week for me to get what ordered two weeks ago… so that tells me you guys can care less for our patronage, so I guess I will search place else for my future orders of my health needs. (I did save her email reply to my request if you care to dig deeper). Too bad, I did liked your product. Luis

C
Customer
Excellent Product

I’ve been using QUercetin, and I couldn’t be more satisfied with the results!

Dear Sergio,

Thank you so much for sharing your positive experience! We are thrilled to hear this.

Your feedback means a lot to us and motivates us to continue providing high-quality products.

Warm regards,
Precious
Customer Support
Triquetra Health

J
Julie

Haven’t been using them long enough to tell but feel it will boost my immunity.

B
BRIAN P.

Great stuff

e
edward b.

i am a repeat customer. quercetin is a very fine product.

R
Rachel

2nd month on these! Absolutely love them! This company has the best quality! I now get all my supplements here on subscription!

Build Your Complete Routine

Warning: If you have a medical condition or are taking medication, contact a physician before taking this supplement. Keep out of reach of children. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

To report a serious adverse event, please contact 844-272-6337.