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- Evidence fitZinc and Vitamin C lead the evidence here, backed by Elderberry and Acerola.
- Dose fit0 of 4 dosed ingredients land in the studied range. Elderberry at 1.5 g sits below the studied 300-1200 mg window.
- Price / serving$0.76 per serving — high price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustMixed trust signals — ratings are positive but the base is limited.
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