Details
Lamberts® Quercetin is extracted from a natural plant source, and each tablet delivers 500mg of pure quercetin. Some lower‑cost products — particularly imported ones — may contain far less quercetin than stated on the label, as the declared weight often refers to the plant extract, not the actual quercetin content. Lamberts uses only premium‑grade material to ensure accurate, reliable potency.
Quercetin occurs naturally in many fruits and vegetables, with apples and onions being the main contributors in the typical UK diet. Each 500mg tablet provides significantly more quercetin than 1kg of apples, offering a highly concentrated source in a convenient daily format.
Quercetin is one of the most researched bioflavonoids, recognised for being more active in the body than many others. Its long history of study and use has made it a popular choice for those seeking targeted plant‑based antioxidant support.
This information is for educational purposes only and not intended to diagnose, treat, cure or prevent any disease. This product should not be used as a substitute for a varied and balanced diet and healthy lifestyle.

Directions
Free From
- Wheat
- Barley
- Soya
- Eggs
- Milk and Milk Products
- Lactose
- Nuts
- Sulphites
- Celery
- Fish
- Shellfish
- Yeast
- Gluten containing ingredients
Cautions
This product is not recommended for pregnant or lactating women.
Storage Instructions
Store in a cool dry place and protect from light.
Ingredients
A speckled yellow oval tablet. Each tablet delivers:
Tableted With:
Bulking Agents (Calcium Carbonate & Cellulose), Anti-caking Agents (Stearic Acid, Silicon Dioxide & Magnesium Stearate), Glazing Agents (Hydroxypropyl Methylcellulose & Glycerin), Humectant (Crosslinked Cellulose Gum).
Disintegration Time:
Less than 1 hour.
Suitable for vegetarians.
Our Aims
Efficient and timely delivery is always our aim.
Our Online Store is functioning normally with all health and safety protocols in place.
Wishing you health and happiness!
UNITED KINGDOM
Royal Mail Tracked 24 or 48 Hour Delivery or EVRI Tracked • FREE SHIPPING on orders over £50.00 (For orders below £50.00, current delivery pricing is available at the checkout)
Our aim is for you to receive your purchase as soon as possible. We will do our best to process your order quickly, usually within 24 to 48 hours, subject to confirmation of payment and depending on stock availability. We aim to deliver your order within 1-5 working days.
If there is a slight delay in shipping your order, we will inform you by email as soon as possible and thank you for your understanding and patience.
You will receive an email confirmation within 24 hours of despatch. For your security and peace of mind, all our UK Deliveries are tracked. We aim to minimise any delays caused by seasonal backlogs or postal strikes.
* Please Note | Orders with a delivery outside of mainland UK ie. the outer Scottish Islands, Northern Ireland, the Channel Islands may be subject to additional delays in transit that are beyond our control.
EU & REST OF THE WORLD
We use Royal Mail Parcel Force or DPD depending on the destination*. Current delivery pricing is available at the checkout.
* Deliveries may be subject to additional delays in transit that are beyond our control.