Life Extension

Optimized Quercetin

$22.00

*Free shipping applies to orders shipped within the Lower 48 States.

Free shipping on orders over $99.

The Promise

Product identity & core ingredients Quercetin phytosome plus vitamin C and citrus bioflavonoids

Optimized Quercetin — 500 mg formula in a vegetarian capsule.

Primary ingredient

Quercetin (as quercetin dihydrate), labeled at 250 mg per capsule.

Delivery form

Quercetin phytosome delivered in a vegetable‑cellulose capsule.

Supporting ingredients*

Vitamin C (ascorbic acid and camu‑camu extract) and an Optimized Food Blend of citrus bioflavonoids, apple and onion extracts; camu‑camu 60 mg.

Dietary & quality facts

Vegetarian, Gluten‑Free, Non‑GMO; 60 capsules per container.

Why It Works

Why this formulation is distinct Specific amounts, forms, and combinatory ingredients

Concrete formulation details you can compare across products.

01

Measured quercetin dose

Each capsule contains 250 mg quercetin (as quercetin dihydrate).

02

Phytosome delivery form

Quercetin is presented as a phytosome preparation to denote a specific complex/formulation.

03

Titrated supporting actives*

Includes 30 mg total vitamin C from ascorbic acid plus camu‑camu extract (60 mg).

04

Whole‑food bioflavonoid blend

Optimized Food Blend supplies citrus bioflavonoids with apple and onion extracts (220 mg).

Reviews

Customer Reviews

Your Journey

How to use & handle Clear serving, storage, and safety details

Practical directions, format, and cautions from the label.

Serving

Suggested Use

Take one (1) capsule once or twice daily, or as recommended by your healthcare practitioner.

Format

Capsule details

Vegetarian capsule; 60 servings per container; other ingredients include microcrystalline cellulose, maltodextrin, silica, vegetable stearate.

Storage & security

Packaging guidance

Do not purchase if outer seal is broken or damaged; keep out of reach of children.

Warnings & practitioner note

Safety instructions

Do not exceed recommended dose. Consult your physician if undergoing treatment for a medical condition or if pregnant or lactating.

Product education

Highly Absorbable Quercetin for Allergy & Immune Support*

Optimized Quercetin™ – 500 mg combines quercetin phytosome with vitamin C and citrus bioflavonoids to deliver fast-acting, highly absorbable flavonoid support for respiratory health, healthy histamine balance, and immune resilience.*

Supports Respiratory & Histamine Balance*

Quercetin helps stabilize mast cells and promote a calm respiratory response—ideal for seasonal concerns and allergy-prone individuals.*

Potent Antioxidant for Immune Resilience

Combined with vitamin C and citrus bioflavonoids, this formula provides synergistic antioxidant activity for enhanced cellular protection.*

Advanced Delivery System

  • 500 mg quercetin phytosome per capsule
  • Vegetarian-friendly, Gluten-free, Non-GMO
  • Clinically studied nutraceutical formulation*

Designed for adults seeking real-world immune support, seasonal resilience, and antioxidant-rich protection with superior absorption.*

Supplement record

Review serving details and ingredients for this product.

Supplement Facts:
Suggested Use: Take one (1) capsule once or twice daily, or as recommended by your healthcare practitioner.
Serving Size: 1 Vegetarian Capsule
Servings Per Container: 60
Ingredients Amount %DV
Vitamin C (from ascorbic acid and camu‑camu berry extract) 30 mg
Quercetin (as quercetin dihydrate) 250 mg
Optimized Food Blend Citrus bioflavonoids, apple, onion extracts 220 mg
Camu‑camu extract (wild‑harvested berry) 60 mg
Other Ingredients: Microcrystalline cellulose, vegetable cellulose (capsule), maltodextrin, silica, vegetable stearate.
(-) Daily Value not established.
Gluten‑Free • Non‑GMO • Vegetarian
Warning: KEEP OUT OF REACH OF CHILDREN. DO NOT EXCEED RECOMMENDED DOSE. Do not purchase if outer seal is broken or damaged. When using nutritional supplements, please consult your physician if undergoing treatment for a medical condition or if pregnant or lactating.