Comparison

Primrose Oil and Evening Primrose Oil 500 mg

Primrose Oil (Progressive Professional from Progressive Laboratories) lists 2 distinct ingredients and Evening Primrose Oil 500 mg (Metabolic Maintenance) 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)
IngredientPrimrose OilEvening Primrose Oil 500 mg
Gamma Linolenic Acid36 mg38 mg
Evening Primrose oil500 mg500 mg

Amounts are per serving as DSLD gives them: Primrose Oil, 1 softgel; Evening Primrose Oil 500 mg, 1 softgel. Current labels entered April 2022 and September 2022. Percentages of the Daily Value from 21 CFR 101.9. Source: NIH ODS Dietary Supplement Label Database.

Each product on its own

  • Primrose OilProgressive Professional from Progressive Laboratories: every row against all products listing it
  • Evening Primrose Oil 500 mgMetabolic Maintenance: every row against all products listing it