Red clover was originally used as a medicinal herb by native indigenous people of North America for whooping cough, gout and cancer. And traditionally, some people also used it in the treatment of asthma, bronchitis, coughs, and dermatophytosis , etc. Red Clover Extract 20% Appearance: brownish green powder Odor: simmiliar with red clover flower Total isoflavones(by HPLC): 20% (Daidzain + Genistein+ Formononetin+Biochanin A) Red Clover Extract 40% Appearance: Dark green powder Odor: simmiliar with red clover flower Total isoflavones(by HPLC): 40% (Daidzain + Genistein+ Formononetin+Biochanin A) Red Clover Extract 60% Appearance: Light green powder Odor: simmiliar with red clover flower Total isoflavones(by HPLC): 60% (Formononetin+Biochanin A)