Comparison

Flax Seed Oil 1000 and Evening Primrose Oil 500

Flax Seed Oil 1000 (GNC Natural Brand) lists 2 distinct ingredients and Evening Primrose Oil 500 (GNC) 2 (rows of one ingredient counted once); 2 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)
IngredientFlax Seed Oil 1000Evening Primrose Oil 500
Fat (unspecified)1 g1 g
Polyunsaturated Fat0.5 g0.5 g

Amounts are per serving as DSLD gives them: Flax Seed Oil 1000, 1 softgel; Evening Primrose Oil 500, 2 softgel capsules. Current labels entered January 2013 and August 2014. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own