Comparison
L-Tryptophan Powder and Tryptophan 480 mg
L-Tryptophan Powder (NOW) lists 1 distinct ingredients and Tryptophan 480 mg (Dr. Clark Research Association Dr. Clark Zentrum) 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-Tryptophan Powder | Tryptophan 480 mg |
|---|---|---|
| Tryptophan | 950 mg | 960 mg |
Amounts are per serving as DSLD gives them: L-Tryptophan Powder, 2 tsp; Tryptophan 480 mg, 2 capsules. Current labels entered November 2015 and June 2020. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.
Each product on its own
- L-Tryptophan PowderNOW: every row against all products listing it
- Tryptophan 480 mgDr. Clark Research Association Dr. Clark Zentrum: every row against all products listing it