Q-Defend
This product is generally safe
- Vitamin D3: 0.125mg is 1.2× the Tolerable Upper Intake Level (0.1mg)
- Zinc Powerhouse3 Blend: 50mg is 1.2× the Tolerable Upper Intake Level (40mg)
- 57% of ingredients have research evidence
What the Evidence Says
AI-generated · Qwen 3.6 · methodologyThis formula contains Vitamin C, D3, and Zinc, which have strong evidence for supporting immune function. Quercetin and elderberry are included for their antioxidant properties, though research on their clinical efficacy is more limited. The ingredient profile is generally recognized as safe with a high safety score.
AI-generated summary based on research evidence. Not medical advice.
Safety Alerts
Vitamin D3: 0.125mg is 1.2× the Tolerable Upper Intake Level (0.1mg)
Zinc Powerhouse3 Blend: 50mg is 1.2× the Tolerable Upper Intake Level (40mg)
Product Label
Label Data
Supplement Facts — Evidence Check
Other Ingredients
Label Claims — Verification
Product Information
Formulation Notes
Immune support series
Quercetin + Zinc, Vitamin C, Vitamin D & Elderberry Each serving contains: Quercetin 1000mg, Vitamin D3 5000iu, Elderberry 1000mg, Vitamin C 1000mg, Zinc 50mg + 350mg Q-Defend Immune blend
Q-Defend Immune Boost 24 hours
Vitamin C Vitamin D3 Quercetin Q Zinc 50 mg ZN Artemisinin Ar Nettle N Reishi R Probiotics PR Rose Hips Rh Echinacea Ec Elderberry El Ginger Gr L-Lysine L Bromelain Br Turmeric Tr Seamoss S Garlic G Black Pepper Bl
Product Details
Research Evidence
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.