Comparison
Phyto Shield and Immune System Formula
Phyto Shield (Douglas Laboratories) lists 8 distinct ingredients and Immune System Formula (Christopher's Original Formulas) 4 (rows of one ingredient counted once); 4 are on both labels. On the site's similarity measure, which compares ingredient lists (1 for the same list, rarer ingredients counting for more; amounts are not part of it), the two formulas score 0.51.
| Ingredient | Phyto Shield | Immune System Formula |
|---|---|---|
| Eleuthero | 75 mg | not disclosed |
| Astragalus | 200 mg | not disclosed |
| Reishi mushroom | not disclosed | not disclosed |
| Echinacea purpurea | 400 mg | not disclosed |
| Zinc | 2 mg (18%) | |
| Vitamin A | not disclosed | |
| Garlic | 300 mg | |
| Ginseng, Panax | 200 mg |
Amounts are per serving as DSLD gives them: Phyto Shield, 3 vegetarian capsules; Immune System Formula, 2 capsules. Current labels entered August 2020 and April 2019. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Phyto ShieldDouglas Laboratories: every row against all products listing it
- Immune System FormulaChristopher's Original Formulas: every row against all products listing it