Quercetin Immune Vitality™
- Quercetin
- Nettle leaf
- Supports a healthy histamine response
- Supports seasonal comfort: clear sinuses and easy breathing
- Antioxidant support to help your cells stay younger, longer
- Helps recycle vitamin C so it keeps working
Secure checkout through Shopify
Shipping and taxes calculated at checkout.
Includes original shipping costs. Additional terms apply to subscriptions.
More Information
Two Botanicals for a Balanced Histamine Response
(600 mg quercetin + 600 mg nettle leaf/serving • 90 vegetarian capsules • 30-day supply)
Natural mast-cell support for balanced immune function and inflammation.
Picture your immune system as a bouncer. Sometimes it gets a little too jumpy with pollen and other seasonal or environmental triggers. Quercetin Immune Vitality™ gives your bouncer two trusted sidekicks--quercetin and nettle leaf--so things stay calm.
Benefits
What People Notice
- Week 1: More seasonal comfort and clearer-feeling sinuses
- Week 2: Steady energy without the afternoon slump
- Month 1+: Healthy-looking hair, skin and nails
Results vary.
Who Quercetin Immune Vitality™ Is For
- Anyone who struggles during allergy season
- Anyone sensitive to environmental triggers
- Anyone who wants daily antioxidant and immune support
Ingredients & Usage
Supplement Facts (per 3 capsules)
- Quercetin (from Sophora japonica buds): 600 mg. The calming flavonoid also found in apples, onions and berries (you'd need a truckload to match one serving!).
- Nettle leaf extract (Urtica dioica): 600 mg. Used for centuries in teas and soups; naturally rich in silica for hair, skin and nails.
Other ingredients: vegetarian capsule (hypromellose), rice flour. No fillers, dyes or stearates.
Suggested Use
- Take 3 capsules daily with a meal
How it works
Why Did We Create Quercetin Immune Vitality™?
Quercetin helps stabilize mast cells, the cells that release histamine, and it's one of the most studied flavonoids for seasonal comfort. Nettle leaf has been a traditional seasonal support herb for centuries.
Together they support a calm, balanced response, steady energy and antioxidant protection, all in clean vegetarian capsules.
Customer Reviews
Why Our Supplements Stand Apart
Physician Formulated
Developed under medical guidance to support safe, science-informed wellness.
Third-Party Tested for Quality
Independently tested to verify purity, potency, and safety standards.
Designed for Optimal Absorption
Formulated to support bioavailability so your body can use nutrients effectively.
Pharmaceutical-Grade Ingredients
Made with high-purity ingredients selected for quality, consistency, and effectiveness.
No Artificial Fillers or Additives
Free from unnecessary fillers, artificial colors, and synthetic additives.
Manufactured in GMP-Certified Facilities
Produced in facilities that follow strict Good Manufacturing Practices for quality and safety.
Better Than Store-Bought
Supplements are everywhere, but form, dose and purity vary widely. We choose well-absorbed forms and keep out the fillers and dyes that sensitive systems react to.
What's On The Label Is What's Inside
Supplements are loosely regulated, so we have our products third-party tested to confirm what's on the label.
What this product can help with
- Mast-cell functionStabilized
- Balanced immune functionSupported
- Healthy inflammatory responseBalanced
- Seasonal comfortEased
- Antioxidant protectionReinforced
- Zinc uptake into cellsEnhanced
What customers say
Quercetin Immune has helped with my allergies and inflammation. Combined with zinc, it's a powerhouse for seasonal support!
Megan T
This flavonoid supplement reduces my sinus issues noticeably. Antioxidant boost that's natural and effective!
Paul R.
I've felt more balanced since adding Quercetin Immune. Great for immune modulation and overall calm!
Sophia L
Individual experiences. Results vary; these statements have not been evaluated by the FDA.
Quality You Can Trust
Physician Exclusive Quality
Our supplements are available to the public exclusively through our doctors, including here in our online store. No prescription is needed to order.
Superior to Store Bought
Any store carries supplements; far fewer can tell you exactly what’s inside. Potency, purity, and accuracy vary widely from label to label, so it’s hard to know what you’re truly getting or how effective it will be. That’s the standard we hold ourselves to.
Trusted Potency Control
The supplement industry is loosely regulated, meaning labels may not reflect actual dosages. Our physician-guided formulas ensure every ingredient and amount is scientifically validated for optimal health and immune support.
Frequently Asked Questions
How does quercetin support seasonal comfort?
Quercetin is a plant flavonoid that helps stabilize mast cells and supports a healthy histamine and inflammatory response.
Why add nettle leaf?
Nettle leaf is a traditional seasonal support herb that works alongside quercetin and adds natural silica.
How do subscriptions work?
Choose from this product’s available delivery schedules: Subscribe & Save — Monthly; Subscribe & Save — Every 2 Months; Subscribe & Save — Every 3 Months. Your order ships automatically on the schedule you select.
Your first subscription order saves 15% and your second order saves 10%. Those order discounts end after your second order. From your third order onward, shipping is free.
You’ll get an email before each shipment. You can change your ship date or frequency, skip, pause, or cancel anytime through Manage subscription. Your 100-Day Money-Back Guarantee remains in effect.
What is your guarantee?
- Accurate labeling verified by independent third-party labs
- Available exclusively from our physicians — can't buy anywhere else
- Medical-grade ingredients backed by real clinical research
- Physician-formulated and recommended
- 100% natural, non-GMO, no fillers or artificial anything
- 100-Day Money-Back Guarantee
Note: Information on this site is for educational purposes only and is not intended as a substitute for advice from your physician or other healthcare professional. Always consult your healthcare provider before starting any new supplement, especially if you have a medical condition, take medications, are pregnant, or are nursing. Results may vary.
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.
Shop Our Best Sellers
Probio Vitality™
Shelf-stable, clinically selected probiotics for gut and immune balance.
Tami's Top Three™
The three daily basics Tami started with and still takes: probiotic, magnesium and D3.
Zinc Immune Vitality™
Bioavailable zinc for immune defense, gut health, and cellular repair.
Save $14.12 (28%)
DHA Vitality™
800 mg EPA + 800 mg DHA, purified and fresh, for the brain, heart and mood.