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Life Extension

Life Extension Bio-Quercetin 90 Capsules

  • 90 vegetarian capsules, 90-day supply
  • One capsule daily, or as a clinician recommends
  • Quercetin with fenugreek seed fiber for bioavailability
  • Gluten free and non-GMO, immune support

Last refreshed Sep 11, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A quercetin capsule built for absorption with fenugreek fiber, for adults who want a single daily capsule. The listing gives no milligram amount of quercetin.

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ASIN: B0GTX12HGPCategory: Quercetin Supplements

Overview

Combining quercetin with fibers from fenugreek seeds, Life Extension designs this capsule to raise how much of the compound the body absorbs. It is a vegetarian capsule, taken once a day, and unflavored.

The reason to buy is a daily capsule with a stated bioavailability approach and a three-month supply. The limitation is that the listing does not give the quercetin amount per capsule, and its comparison to standard formulas is the maker's own.

Who it's for

Adults who want an immune-support quercetin and are fine with a one-a-day capsule fit this bottle. Anyone on medication, pregnant, or wanting stated doses should check the label and ask a clinician.

Pros and cons

Pros
  • Fenugreek fiber for absorption
  • One capsule daily
  • Ninety day supply
  • Gluten free and non-GMO
Cons
  • Quercetin amount not listed
  • Bioavailability claim is the maker's own
  • Immune benefit is a general claim

Performance notes

Quercetin is poorly absorbed on its own, and pairing it with fenugreek fiber is the approach used here to improve uptake. The listing says this far outclasses standard formulas but gives no comparison data. A single daily capsule suits a simple routine.

Specifications

BrandLife Extension
Capacity & performance
Age Range DescriptionAdult
Construction & materials
Material FeaturesNon-GMO
Included components
Unit Count90 count
Other details
Diet TypeGluten free, vegetarian
Primary Supplement TypeQuercetin (Bio-Quercetin)
Item FormCapsule
Product BenefitsImmune support
FlavorUnflavored
Supply90 days
Directions1 capsule daily

Frequently asked questions

Can I take Life Extension Bio-Quercetin with other supplements?

The listing gives no guidance. The directions say take one capsule daily, or as a healthcare practitioner recommends.

How long does one bottle of Bio-Quercetin last?

Ninety days when taken as directed, at one capsule a day.

Is Life Extension Bio-Quercetin gluten free?

Yes. The diet type lists gluten free, and the material free field lists non-GMO.