Get your balance back. Phytoestrogens, compounds naturally found in certain plants, are thought to mimic the effects of estrogen in the body. Solaray PhytoEstrogen Menopause has combined the estrogenic herbs wild yam, black cohosh and dong quai with non-GMO soy for perimenopause and menopause support. Each 4- VegCap serving of Solaray PhytoEstrogen is guaranteed to contain 2.5% diosgenin from wild yam, a powerful plant estrogen, plus 3% isoflavones from non-GMO soy for added support. Like all Solaray products, PhytoEstrogen is lab verified for potency, purity and identity.