Life Extension Bio-Quercetin Capsules
- Form: Capsule
- Diet: Gluten Free
- Allergens: Gluten Free
- Benefits: Delivers 18x More Bioavailable Free Quercetin (up To 62x Better Total Bioavailab
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A phytosome-based quercetin supplement built around improved absorption over standard quercetin, worth the format if bioavailability is the reason you chose quercetin in the first place.
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ASIN: B07JZHSNZFCategory: Combination Supplements
Overview
Life Extension's Bio-Quercetin uses a quercetin phytosome formulation in a 30-capsule bottle, positioned for immune and heart health support and labeled gluten free, non-GMO and vegetarian.
Standard quercetin is known for being poorly absorbed by the body, and the phytosome delivery method used here is specifically meant to address that, with the listing citing up to 18 times more bioavailable free quercetin and as much as 62 times better total bioavailability compared to unformulated quercetin. That bioavailability claim is the main differentiator versus a plain quercetin capsule.
- Bio-Quercetin phytosome formula
- Up to 18x more bioavailable free quercetin per the listing
- Gluten free, non-GMO, vegetarian
- 30 capsules per bottle
Who it's for
Suited to people who have looked into quercetin specifically and want a bioavailability-enhanced version rather than a standard capsule. Less relevant to anyone wanting a general multivitamin or a lower-cost plain quercetin product, since phytosome formulations tend to carry a price premium.
Pros and cons
- Phytosome formulation aimed at higher absorption than standard quercetin
- Gluten free, non-GMO and vegetarian
- 30-count bottle, simple one-a-day sizing
- 30 capsules means a shorter supply than larger vitamin bottles
- Bioavailability multiples come from the manufacturer's own listing, not an independent test cited in the data
Performance notes
Phytosome technology binds the active compound to a fat-soluble carrier so it moves through the digestive lining more readily than the free compound would on its own, which is the mechanism behind the bioavailability figures cited for this product. Because it is a 30-capsule bottle, the practical dosing window is about a month at one capsule a day before a refill is needed.
Specifications
| Brand | Life Extension |
|---|---|
| Form | Capsule |
| Diet | Gluten Free |
| Allergens | Gluten Free |
| Benefits | Delivers 18x More Bioavailable Free Quercetin (up To 62x Better Total Bioavailab |
| Count | 30 |
| Flavor | Unflavored |
| Supplement Type | Bio-Quercetin Phytosome |
Frequently asked questions
What makes this different from regular quercetin?
It uses a phytosome delivery form the listing describes as delivering up to 18 times more bioavailable free quercetin than standard quercetin.
Is Life Extension Bio-Quercetin vegetarian?
Yes, it is labeled vegetarian, gluten free and non-GMO.
How many capsules are in one bottle?
30 capsules.