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60 capsules: January 2026
Take one to two times a day one capsule with or without food.
Discount
Price per piece with purchase of:
| 1 | units: | ||
| 2 | units: | -5% | |
| 3 | units: | -10% | |
| 4 | units: | -15% | |
| 5 | units: | -20% | |
| 8 | units: | -25% |
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Quercetin is the most abundant bioflavonoid and is also subject to much research. It is found in a number of commonly consumed foods, such as red wine, apples, onions and green tea.
Life Extension only uses natural extracts of fruits and vegetables.
| Product name: | LifeExtension Optimized Quercetin |
| Content: | 60 vegetarian capsules |
Supplement Facts per capsule (Serving Size)
| Amount | RI † | |
| Vitamin C (from ascorbic acid and camu camu extract) | 90 mg | 113% |
| Quercetin formula | 500 mg | |
| - Quercetin dihydrate, buckwheat (sprout), apple polyphenol extract (fruit), onion extract (bulb) | 250 mg | |
| Camu- camu extract (fruit) (Myrciaria dubia) (20% vitamin C) | 60 mg | 75% |
Ingredients Vitamins, quercetin, capsule (cellulose (vegetable)), filler (microcrystalline cellulose), anti-caking agents (silicon dioxide, maltodextrin, stearic acid (organic)).
Explanation of the composition †RI stands for Reference Intake and replaces the RDA (Recommended Daily Allowance). RI is a guideline for the intake of vitamins and minerals in particular. RI and ADH are equal in number.
Suggested use
Take one to two times a day one capsule with or without food.
Stick to the recommended daily dosage, unless otherwise advised.
A varied, balanced diet and a healthy lifestyle are important. Nutritional supplements are not a substitute for a varied diet. More usage advice.
| This supplement is: |
| Suitable for vegetarians |
| Suitable for vegans |
Storage advice Store in a cool, dry and dark place. Not in the refrigerator.
Keep out of reach of children.
Best by date 60 capsules: January 2026
Dietary supplement Botanical supplement
Distributor EU: LifeExtension Europe BV
1175 RH 38 Lijnden
NL: Smeets & Graas
9728 TB 11 Groningen
Quercetin is the most abundant bioflavonoid and is also subject to much research. It is found in a number of commonly consumed foods, such as red wine, apples, onions and green tea.
Life Extension only uses natural extracts of fruits and vegetables.
| Warning |
| Do not use in combination with cardiac glycosides. |
| Allergy information | |
| Gluten | no |
| Shellfish | no |
| Eggs | no |
| Fish | no |
| Peanut | no |
| Soy | no |
| Milk (lactose) | no |
| Tree nuts | no |
| With sweetener(s) | no |
| With caffeine | no |
| Yeast | no |
| Lupine | no |
| Corn | no |
| Mustard | no |
| Rice | no |
| Celery | no |
| Sesame | no |
| Molluscs | no |
| Sulfur dioxide and sulfite | no |
| Coloring additives | no |
| Flavourings | no |
| Conservatives | no |
Deviations from the label It may happen that texts on our website differ from the texts on a product's label.
Health issues If you have health issues and/or are taking medication, always consult your doctor before taking certain supplements.
Pregnancy/breastfeeding, children If a product does not explicitly state that it is intended for pregnant or breastfeeding women, or children, we recommend consulting an expert first.
More information For more information on label discrepancies, what to do in case of
health complaints, and answers to other questions, please visit our
Frequently Asked Questions page.
Contact If you still have questions, please feel free to contact us.