Quercetin 300 mg — Stabilized High-Potency Antioxidant & Immune Support (60 Vegcaps)
Quercetin 300 mg delivers high-quality quercetin derived from a non-citrus plant source, stabilized with additional antioxidants to prevent auto-oxidation and preserve potency. Providing 600 mg per 2-capsule serving, this is a therapeutic-dose quercetin supplement for serious anti-inflammatory, anti-allergy, and antiviral applications.* Recommended by Michelle Tonkin ND as a foundational immune and inflammation supplement.*
Key Benefits
- 600 mg therapeutic dose per serving — potent anti-allergy and anti-inflammatory action*
- Stabilized with antioxidants to preserve quercetin activity — superior shelf life
- Mast cell stabilizer — reduces histamine release for natural allergy relief*
- Supports immune function and antiviral defense*
- Reduces inflammatory cytokine production — supports systemic inflammation control*
Who Is This For?
Quercetin 300 mg is ideal for individuals with moderate to severe seasonal allergies, those managing chronic inflammation, anyone seeking therapeutic antiviral immune support, and health-conscious individuals wanting high-potency antioxidant protection.
Frequently Asked Questions
Q: What's the difference between this and the Quercetin Bioflavonoids formula?
A: This product delivers a higher, more concentrated therapeutic dose of quercetin per serving. The bioflavonoid formula includes complementary lemon bioflavonoids for a synergistic whole-food approach.
Q: Can I take quercetin year-round?
A: Yes — quercetin is safe for long-term daily use and provides year-round antioxidant and immune benefits beyond just seasonal allergy relief.*
Q: Does quercetin interact with medications?
A: Quercetin can inhibit CYP3A4 enzyme. Consult your physician if on medications, especially certain antibiotics, blood thinners, or immunosuppressants.

