Soy isoflavone 100 mg with Agnus castus

Our verdict

Soy isoflavone 100 mg with Agnus castus works out to $0.08 per serving of soy isoflavones, at 100mg per serving in capsule form. That puts it the cheapest quarter of the 11 soy isoflavones products we can price per dose, where the typical serving costs $0.15, a Value Index of 1.9 where the median product is 1.0. One container lasts 90 days at the label dose of 1 serving a day, about $2.33 a month. We could not verify a third-party certification for Anisx 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.