Genistin (Genistoside) is the major isoflavonoid of soybeans and soy products.It has been reported to possess various therapeutic effects, including anti-inflammatory and anticancer activities

Formononetin (Flavosil) is an O-methylated isoflavone and a phytoestrogen from the root of Astragalus membranaceus.

Lindleyin is a novel phytoestrogen and might trigger many of the biological responses evoked by the physiological estrogens.

(2S)-6-Prenylnaringenin (6-Prenylnaringenin) is an isomer of the potent phytoestrogen, 8-prenylnaringenin. (2S)-6-Prenylnaringenin is the most potent compound in the forebrain and acts as a positive allosteric modulator of GABAA at the α+β binding site.

(±)-Equol ((R,S)-Equol) is a non-steroidal estrogen produced from the metabolism of the isoflavonoid phytoestrogen daidzen by human intestinal microflora. The estrogen receptor (ER) agonist activity of the naturally occurring (S)-enantiomer (EC50 = 85 and 65 nM for human ERα and ERβ, respectively) is similar to that of genistein but exceeds that of daidzein. (±)-Equol preferentially binds ERβ (Ki = 0.73 nM) and demonstrates approximately 9-fold lower affinity for ERα (Ki = 6.41 nM). (±)-Equol is also a potent antagonist of dihydrotestosterone, which has important implications for prostate cancer and other androgen-mediated pathologies.

8-Prenylnaringenin is a phytoestrogen with high estrogenic activity,

Bavachin (Corylifolin) is a phytoestrogen that activates the estrogen receptors ERα and ERβ.