Appearance: Black brown powder Specification:Isoflavone≥2.5%、8%、20%、40% Functions:Estrogenic, anti-tumor and cholesterol-reducing.Red clover contains very high levels of all four isoflavones , including biochanin A, formononetin, daidzein and genistein. These isoflavone constituents also exist as corresponding sugar derivatives (glycosides), sissotrin, ononin, diadzin and genistin.