Core-21
Core-21 and 2 near-identical products are sold under 2 different brand names — a exact-twin Formula Twins cluster.
| Product | Brand |
|---|---|
| Core-21 | 1st Phorm |
| Organic Vitamin C Acerola Cherry 500 mg | Dr. Mercola |
| Organic Vitamin C Acerola Cherry 500 mg | Dr. Mercola |
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