NatureBell Evening Primrose Oil with Black Cohosh

Our verdict

NatureBell Evening Primrose Oil with Black Cohosh works out to $0.05 per serving of evening primrose oil, at 1300mg per serving in softgel form. That puts it the cheapest quarter of the 20 evening primrose oil products we can price per dose, where the typical serving costs $0.18, a Value Index of 3.4 where the median product is 1.0. One container lasts 300 days at the label dose of 1 serving a day, about $1.60 a month. We could not verify a third-party certification for NatureBell in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.