Comparison
Aller-Aid and Ultimate Respiratory Defense
Aller-Aid (Oregon's Wild Harvest) lists 4 distinct ingredients and Ultimate Respiratory Defense (Swanson) 2 (rows of one ingredient counted once); 2 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 0.46.
| Ingredient | Aller-Aid | Ultimate Respiratory Defense |
|---|---|---|
| Quercetin | 275 mg | 300 mg |
| N-Acetyl Cysteine | 300 mg | 600 mg |
| Vitamin C | 250 mg (278%) | |
| Nettle (unspecified) | 150 mg |
Amounts are per serving as DSLD gives them: Aller-Aid, 2 capsules; Ultimate Respiratory Defense, 1 veggie capsule. Current labels entered February 2024 and February 2025. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- Aller-AidOregon's Wild Harvest: every row against all products listing it
- Ultimate Respiratory DefenseSwanson: every row against all products listing it