Collagen plus Vitamin C
Collagen plus Vitamin C and 2 near-identical products are sold under 2 different brand names — a exact-twin Formula Twins cluster.
| Product | Brand |
|---|---|
| Collagen plus Vitamin C | BIOVEA |
| Collagen Types 1 and 3 1000 mg | Doctor's Best |
| Collagen Types 1 and 3 1000 mg | Doctor's Best |
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