High-Absorption Quercetin for Immune, Respiratory & Cellular Health

Quercetin is a plant flavonoid found in colorful fruits and vegetables like apples, onions, and berries. It acts as a powerful antioxidant, helping neutralize free radicals that contribute to cellular damage, inflammation, and accelerated aging.

Thorne’s Quercetin Phytosome takes this classic nutrient to the next level. Because standard quercetin is poorly absorbed, this formula uses phytosome technology to dramatically improve bioavailability. The result? Up to 20x better absorption than regular quercetin extract, so your body gets more benefit from every capsule.

This advanced formula supports immune balance, seasonal comfort, respiratory health, and cellular longevity, making it a daily essential for modern wellness.

Key Benefits

• Supports healthy immune function*

• Helps regulate histamine for seasonal allergy relief*

• Promotes a healthy inflammatory response in the respiratory tract*

• Provides antioxidant protection against oxidative stress*

• Supports healthy aging and cellular longevity*

Why Quercetin Phytosome Works

• Up to 20x more bioavailable than standard quercetin*

• Supports sirtuin activity for cellular health*

• Helps reduce cellular senescence*

• Optimizes antioxidant, immune, and longevity pathways

• Clean, simple capsule formula

Who It’s For

• Anyone wanting stronger immune support

• Individuals affected by seasonal allergies or hives

• Those looking to support respiratory health and recovery

• Biohackers and longevity-focused individuals

• Anyone aiming to age with strength and clarity

Suggested Use

Take 1 capsule, two to three times daily with meals, or as directed by your healthcare professional.

Supplement Facts

Serving Size: 1 Capsule

Amount Per Serving:

• Quercetin Phytosome – 250 mg

Other Ingredients:
Hypromellose capsule, leucine, microcrystalline cellulose, silicon dioxide

Warnings & Precautions

• Do not use if you have a hypersensitivity to any ingredient

• If pregnant, consult your healthcare professional before use

• No known adverse interactions at time of publication

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.