Comparison
L-Histidine 500 mg and 100% Pure L-Histidine
L-Histidine 500 mg (Douglas Laboratories) lists 1 distinct ingredients and 100% Pure L-Histidine (NutraBio) 1 (rows of one ingredient counted once); 1 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 1.00: the same ingredients, at the amounts in the table below.
| Ingredient | L-Histidine 500 mg | 100% Pure L-Histidine |
|---|---|---|
| Histidine | 500 mg | 500 mg |
Amounts are per serving as DSLD gives them: L-Histidine 500 mg, 1 capsule; 100% Pure L-Histidine, 0.5 g. Current labels entered August 2020 and October 2015. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- L-Histidine 500 mgDouglas Laboratories: every row against all products listing it
- 100% Pure L-HistidineNutraBio: every row against all products listing it