Quercetin 300

Quercetin 300

$34.99
Skip to product information
  • 600 mg Quercetin
  • Vegetarian Capsules
  • Antioxidant Support
Quercetin 300
About this product

Support your antioxidant defenses with this bioflavonoid formula from Allergy Research Group. Quercetin 300 delivers Quercetin Dihydrate derived from a non-citrus plant source, stabilized with Vitamin C and Vitamin E to help maintain the integrity of the active ingredient.

How it works
Quercetin Dihydrate is a bioflavonoid from a non-citrus plant source that supports normal antioxidant defenses and healthy immune function. Vitamin C, provided as Ascorbic Acid, supports the body's normal antioxidant capacity and helps maintain the stability of the formula. Vitamin E, as d-alpha-Tocopheryl Acetate, is a fat-soluble antioxidant that supports normal protection against oxidative stress. Together, these three antioxidants are formulated to prevent the spontaneous degradation of quercetin, helping to preserve the integrity of the active ingredient.
Quality and testing

Quercetin 300 is encapsulated in vegetarian capsules and sealed for product safety. The formula is designed with antioxidant co-factors to prevent spontaneous degradation of quercetin prior to use.

  • Vegetarian capsules
  • Safety seal intact required for use
Allergy Research Group

Quercetin 300

Quercetin bioflavonoid, stabilized with antioxidants for lasting potency.

Stabilized quercetin bioflavonoid with antioxidant co-factors to support normal immune and antioxidant function.

  • Size60 capsules
  • FormCapsule
  • Cost per day$1.17
  • Serving2 capsules

Support your antioxidant defenses with this bioflavonoid formula from Allergy Research Group. Quercetin 300 delivers Quercetin Dihydrate derived from a non-citrus plant source, stabilized with Vitamin C and Vitamin E to help maintain the integrity of the active ingredient.

  • Supports normal antioxidant defenses
  • Promotes healthy immune function
  • Helps maintain quercetin stability through antioxidant co-formulation
$34.99
Subscribe & save

Auto-renews, skip or cancel anytime. View subscription policy

To add to cart, go to the product page and select a purchase option
  • Vegetarian

Same-day shipping

Free shipping on orders of $70 and above. Orders placed by 6:00 pm ET, Monday to Friday, ship the same day.

Sourced direct from Allergy Research Group

Bought from the brand, stored and shipped by us. Never the grey market.

Questions about this product?

Call (864) 214-2264 or send us a message

About this product

Support your antioxidant defenses with this bioflavonoid formula from Allergy Research Group. Quercetin 300 delivers Quercetin Dihydrate derived from a non-citrus plant source, stabilized with Vitamin C and Vitamin E to help maintain the integrity of the active ingredient.

How it works
Quercetin Dihydrate is a bioflavonoid from a non-citrus plant source that supports normal antioxidant defenses and healthy immune function. Vitamin C, provided as Ascorbic Acid, supports the body's normal antioxidant capacity and helps maintain the stability of the formula. Vitamin E, as d-alpha-Tocopheryl Acetate, is a fat-soluble antioxidant that supports normal protection against oxidative stress. Together, these three antioxidants are formulated to prevent the spontaneous degradation of quercetin, helping to preserve the integrity of the active ingredient.
Supplement facts and use
Serving size
2 capsules
Suggested use
Take 1 or 2 capsules one to three times daily with meals, or as directed by a healthcare practitioner.
When to take it
Take with meals. May be taken one to three times daily, with dosage adjusted between one and two capsules per occasion as directed by a healthcare practitioner.
Supplement Facts
Serving Size: 2 Capsules
Servings Per Container: 30
IngredientAmount Per Serving% Daily Value
Vitamin C (as Ascorbic Acid)150 mg167%
Vitamin E (as 140 IU d-alpha-Tocopheryl Acetate)93.8 mg625%
Quercetin Dihydrate600 mg†
† Daily Value not established.
Other Ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, L-leucine, Silicon Dioxide.
Suggested Use: Take 1 or 2 capsules one to three times daily with meals, or as directed by a healthcare practitioner.

Key ingredients

Quercetin Dihydrate — a bioflavonoid derived from a non-citrus plant source, included to support antioxidant activity and normal immune function. Vitamin C (as Ascorbic Acid) — a water-soluble antioxidant vitamin included to help stabilize the formula and support normal antioxidant defenses. Vitamin E (as d-alpha-Tocopheryl Acetate) — a fat-soluble antioxidant included to help protect the formula from oxidation and to support normal antioxidant function.

Quality and testing

Quercetin 300 is encapsulated in vegetarian capsules and sealed for product safety. The formula is designed with antioxidant co-factors to prevent spontaneous degradation of quercetin prior to use.

  • Vegetarian capsules
  • Safety seal intact required for use
Safety and precautions

If you are pregnant or lactating, have any health condition, or are taking any medication, consult your healthcare practitioner before use. Keep out of the reach of children. Use only if safety seal is intact. WARNING: Consuming this product can expose you to lead which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.

Check with your healthcare practitioner before starting a new supplement, especially if you are pregnant, nursing, taking medication or managing a health condition.

Practitioner grade

The professional lines clinicians recommend

Sourced direct

Bought from the brands, never the grey market

Free shipping at $70 and above

Ships same day when you order by 6:00 pm ET, Monday to Friday

People, not bots

Supplement experts answer the phone