Comparison

5-Htp and 5-HTP Enhanced With Vitamins B6 & C

5-Htp (Thrive Naturals) lists 3 distinct ingredients and 5-HTP Enhanced With Vitamins B6 & C (Doctor's Best) 3 (rows of one ingredient counted once); 3 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.

Amount per serving (and % of the Daily Value)
Ingredient5-Htp5-HTP Enhanced With Vitamins B6 & C
Vitamin C240 mg (267%)200 mg (222%)
Vitamin B624 mg (1412%)15 mg (882%)
5-HTP600 mg100 mg

Amounts are per serving as DSLD gives them: 5-Htp, 3 capsules; 5-HTP Enhanced With Vitamins B6 & C, 1 capsule. Current labels entered July 2015 and June 2016. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own