Comparison

Willow and White Willow Bark-V

Willow (Nature's Way) lists 2 distinct ingredients and White Willow Bark-V (Douglas Laboratories) 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 0.60.

Amount per serving (and % of the Daily Value)
Ingredient	Willow	White Willow Bark-V
Willow	500 mg	500 mg
White Willow	400 mg

Amounts are per serving as DSLD gives them: Willow, 2 capsules; White Willow Bark-V, 1 vegetarian capsule. Current labels entered January 2020 and January 2012. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own

WillowNature's Way: every row against all products listing it
White Willow Bark-VDouglas Laboratories: every row against all products listing it