Quercetin 500mg 200 Capsules Natural Antihistamine Quercetin Supplement Helps Support Cardiovascular Immune and Cellular Function.
Analysis updated August 2026 · How Scout scores
At a glance
Summary
This quercetin supplement contains a beneficial flavonoid known for its antioxidant and anti-inflammatory properties, supporting cardiovascular and immune health. The formulation is relatively simple, with minimal additives such as cellulose and magnesium stearate, which are common in capsule supplements. However, the presence of these additives and the use of gelatin contribute to a moderate level of processing, slightly impacting the overall score.
Key ingredients 5
QuercetinVery Good
Quercetin is a flavonoid with strong antioxidant properties that support cardiovascular and immune health. It is naturally found in many fruits and vegetables and is known for its anti-inflammatory effects. Quercetin may also help in reducing allergy symptoms by acting as a natural antihistamine.
Benefits
Quercetin supports cardiovascular health, boosts the immune system, and has anti-inflammatory properties.
CelluloseNeutral
Cellulose is a common filler used in supplements to provide structure and bulk. It is derived from plant cell walls and is generally considered safe for consumption. As an insoluble fiber, it passes through the digestive system without being absorbed.
See more about Cellulose →Silicon DioxideNeutral
Silicon dioxide is used as an anti-caking agent to prevent clumping in powdered supplements. It is a naturally occurring compound found in the earth's crust and is generally recognized as safe. It does not contribute any nutritional value to the product.
See more about Silicon Dioxide →Magnesium StearateNeutral
Magnesium stearate is a common flow agent used in supplement manufacturing to prevent ingredients from sticking to equipment. It is a salt of stearic acid and magnesium and is generally considered safe in small amounts. It does not provide any nutritional benefits.
See more about Magnesium Stearate →GelatinNeutral
Gelatin is used as a capsule material and is derived from animal collagen. It is commonly used in supplements and is generally recognized as safe. Gelatin provides a source of protein but is not significant in the small amounts used in capsules.
See more about Gelatin →Processing
Processed Foods
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