Vision Guard iShield
Vision Guard iShield and 3 near-identical products are sold under 3 different brand names — a exact-twin Formula Twins cluster.
| Product | Brand |
|---|---|
| Vision Guard iShield | Sundown |
| Lutein Vision Guard with Lutemax 2020 | Puritan's Pride |
| Vision Guard iShield | Sundown |
| Lutein Blue | Nature's Bounty |
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