Compare every Quercetin product across UK retailers on Suppio, ranked by true value - price per active dose, not pack size. Prices refreshed daily.
Flavonoid antioxidant with anti-inflammatory and antiviral properties
We rank Quercetin by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Quercetin is a type of flavonoid, which is a natural compound found in many plants. It acts as an antioxidant, meaning it helps protect the body's cells from damage caused by unstable molecules called free radicals.
It is primarily used for its anti-inflammatory properties, which help reduce swelling and irritation in the body. Additionally, it is used for its antiviral properties to help the body fight off certain viruses.
To create the supplement, companies typically extract the compound from plant sources like onions or buckwheat using solvents. This liquid extract is then purified and dried into a concentrated powder, which is then placed into capsules or pressed into tablets.
This ingredient is generally mid-range in price. This is because the extraction process from raw plant materials requires specific industrial equipment and purification steps, making it more costly to produce than basic minerals but cheaper than rare synthetic compounds.
| Purpose | Typical studied dose | Evidence |
|---|---|---|
| Heart disease | 120 mg per day | limited |
| Metabolic syndrome | 150 mg per day | limited |
| Rheumatoid arthritis | 500 mg per day | emerging |
| Polycystic ovary syndrome (PCOS) | 1 gram per day | emerging |
| Cardiovascular risk | 500 mg per day | limited |
| Reduction of fasting plasma glucose and insulin concentrations | 500 mg per day or more | emerging |
| Immune system function and COVID-19 prophylaxis | 50 mg to 1500 mg | emerging |
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.
Flavonoid antioxidant with anti-inflammatory and antiviral properties
We rank Quercetin by price per gram of active ingredient - not by pack size - so a bigger tub with a worse price per dose can't outrank a smaller one that's actually cheaper.
Suppio matches identical products across UK retailers by barcode, then ranks by price per active dose rather than sticker price. Value rankings only ever include listings Suppio has independently verified against the live retailer page - unverified data is shown on each product’s own page but excluded from ranking.
Prices across our retailer network are refreshed at least daily.