Comparison

Feverfew Alcohol-Free and Herbal Actives Feverfew 500 MG/0.7% Parthenolide Extended Release

Feverfew Alcohol-Free (Nature's Answer) lists 1 distinct ingredients and Herbal Actives Feverfew 500 MG/0.7% Parthenolide Extended Release (Nature's Plus) 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.

Amount per serving (and % of the Daily Value)
Ingredient	Feverfew Alcohol-Free	Herbal Actives Feverfew 500 MG/0.7% Parthenolide Extended Release
Feverfew	500 mg	500 mg

Amounts are per serving as DSLD gives them: Feverfew Alcohol-Free, 2 ml; Herbal Actives Feverfew 500 MG/0.7% Parthenolide Extended Release, 1 tablet. Current labels entered February 2019 and March 2013. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own

Feverfew Alcohol-FreeNature's Answer: every row against all products listing it
Herbal Actives Feverfew 500 MG/0.7% Parthenolide Extended ReleaseNature's Plus: every row against all products listing it