Natural Factors, Quercetin, 500 mg, 60 Vegetarian Capsules

• Dietary Supplement
• Immune Support
• Suitable for Vegetarians/Vegans

Quercetin is one of the most well-known antioxidant bioflavonoids. A free radical scavenger, quercetin helps support healthy sinus, respiratory, and immune system function.

Isura™:
Non-GMO: Documentation ✔
Mass Spec: Lab Tested ✔