Built by Nature Berberine HCl 500mg Supplement, 90 Capsules

Our verdict

Built by Nature Berberine HCl 500mg Supplement, 90 Capsules works out to $0.11 per serving of berberine, at 500mg per serving in capsule form. That puts it the cheapest quarter of the 71 berberine products we can price per dose, where the typical serving costs $0.27, a Value Index of 2.5 where the median product is 1.0. One container lasts 90 days at the label dose of 1 serving a day, about $3.33 a month. We could not verify a third-party certification for Built by Nature 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.