Quercetin Capsules
The flavonoid from onions and apples.
60 capsules
30 day supply
£0.93 per day £0.46 per capsule
Guaranteed additive free
Highest purity
Practitioner grade
Free Standard UK delivery over £50.00
30 day returns
In stock. Orders before 2pm Mon-Fri are dispatched same day.
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Quercetin is a flavonoid, a plant pigment found in onions, apples, capers and tea. This extract comes from the buds of Sophora japonica, a plant grown for its flavonoid content.
Flavonoids are the compounds behind many of the effects credited to fruit and vegetables. People take quercetin as a supplement in amounts food cannot provide, often with bromelain or vitamin C.
Each capsule provides quercetin with nothing else apart from the vegetable shell. It is often taken with meals, and it is the ingredient at the centre of several Nutri Tailor formulas.
| Each capsule contains: | %NRV* | |
|---|---|---|
| Quercetin | 250 mg | † |
† Nutrient Reference Value (NRV*) not established
Also listed as quercetin dihydrate, sophoretin, meletin.
Suitable for men.
Suitable for women.
Consult your healthcare practitioner before use if pregnant or breastfeeding.
Suitable for vegetarians.
Suitable for vegans.
No gluten containing ingredients.
No nut containing ingredients.
No dairy containing ingredients.
If you are taking prescribed medicines or under medical supervision, consult your healthcare practitioner before use.
Store in a cool dry place.
Keep out of reach of children.
This information is not a substitute for advice from a healthcare practitioner.
This product should not be used as a substitute for a varied diet.
Once opened, consume within 3 months.
This product is in stock. Orders placed before 2pm Mon-Fri are dispatched the same day.
UK Standard Delivery (Royal Mail Tracked 48, 2 to 4 working days) is £3.95, or free on orders of £50 or more. Express Delivery (Tracked 24, 1 to 2 working days) is £5.65, free on orders of £80 or more. Next Day Delivery (Royal Mail Special Delivery) is £8.50, free on orders of £120 or more; order before 2pm on a working day for next-working-day arrival. We dispatch Monday to Friday.
Delivery and worldwide shipping options are shown at checkout, with duties and taxes included.
Unopened items in their original packaging can be returned within 30 days of delivery.
Quality promise
Why clinical grade matters
- ✓ GMP certified, pharmaceutical grade manufacturing
- ✓ Made in UK cleanroom facilities, ISO 9001 & ISO 14001 accredited
- ✓ No fillers, binders or additives, only active ingredients
- ✓ Fully traceable from raw material to finished product
- ✓ Non-GM, non-irradiated, 100% green energy manufacturing
Evidence
What the research shows
Our Health Reference Library is an ever-growing collection of peer-reviewed research and health guidance.
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Frequently asked questions
What does Quercetin do in the body?
Quercetin is a flavonoid that stabilises mast cells, the immune cells that release histamine during allergic reactions. It also has broad anti inflammatory and antioxidant activity and functions as a zinc ionophore, helping shuttle zinc into cells where it supports immune function. It is found naturally in onions, apples, berries and capers.
When is the best time to take Quercetin?
For allergy and immune support, take Quercetin with meals. Standard quercetin has relatively low oral bioavailability (approximately 17 to 25 percent), and the fat content in food significantly improves absorption. For gut focused use, taking it away from food allows quercetin to act directly on the gut lining rather than being absorbed systemically.
Quercetin on its own, with bromelain, or as a phytosome: which should I choose?
Plain quercetin is absorbed poorly on an empty stomach, so it is taken with a meal that contains some fat. Quercetin with bromelain pairs it with a pineapple enzyme, a traditional combination that some people prefer. Phytosome forms bind quercetin to a phospholipid to raise absorption, at several times the price per milligram. These capsules give 250 mg of quercetin on its own from Sophora japonica, which suits people who want the plain flavonoid at a measured dose and are happy to take it with food.
Can I take Quercetin alongside prescription medication?
If you take any prescription medication, please consult your prescribing healthcare professional before starting Quercetin. Quercetin can interact with certain antibiotics, blood thinners, and cyclosporine. Suitability and allergen detail is in the Informational Booklet supplied with the product.
Who is quercetin best for?
People pointed at quercetin by a practitioner or their own reading who want the plain form at a known 250 mg dose, people who want to run the 500 to 1,000 mg a day range the research used, and anyone who wants a single ingredient rather than a blend. There is no authorised health claim for quercetin, so Nutri Tailor does not promise an outcome from it.
What is quercetin?
A flavonoid, one of the yellow plant pigments, found in onions, apples, capers and berries. Each capsule provides 250 mg. It is poorly absorbed on its own, so it is usually taken with a meal that contains some fat.
Why capsules rather than tablets?
Tablets need binders, fillers and a coating to hold their shape. A capsule is a cellulose shell around the powder, so it carries no binders and breaks down quickly once swallowed.
