| Ingredient | Safety | Products |
|---|---|---|
| Silicon | Generally Safe | 4 |
| Magnesium | Generally Safe | 2 |
| Vitamin A | Conditionally Safe | 2 |
| Vitamin E | Conditionally Safe | 2 |
| Vitamin C | Generally Safe | 2 |
| Goldenseal | Limited Evidence | 1 |
| Zinc | Conditionally Safe | 1 |
| Astragalus | Generally Safe | 1 |
| Product | Form | Type |
|---|---|---|
| 2-Phase Dual Immune Booster | Tablet or Pill | Other Combinations |
| Arabinogalactans/Olive Leaf Complex | Capsule | Other Combinations |
| Esterified Vitamin C | Tablet or Pill | Vitamin |
| Herbal Immune Support Formula | Capsule | Other Combinations |