Black Elderberry Advanced Immune Syrup
Black Elderberry Advanced Immune Syrup and 2 near-identical products are sold under 3 different brand names — a near-twin Formula Twins cluster.
| Product | Brand |
|---|---|
| Black Elderberry Advanced Immune Syrup | Sambucol |
| Daily Immune Support with Real Elderberry | Zarbee's |
| Sambucus Black Elderberry Liquid Extract | Puritan's Pride |
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