| Synonym | Formononetol |
| Type | Leguminosae |
| Keywords | Osteoporosis, cancer, breast cancer, colon cancer, prostatic cancer |
| Product Name | Formononetin |
| CAS Registry Number | 485-72-3 |
| Molecular Formula | C16H12O4 |
| Molecular Weight | 268.26 |
| Purity | ≥98% |
| Appearance | White powder |
| Shelf life | 2 years |
| Functions | Prevent cancer, relieve osteoporosis |
Formononetin is an O-methylated isoflavone that can be found in many herbs such as red clover. It is usually used as a blood enhancer and to improve blood microcirculation in complementary and alternative medicine. It promotes endothelial repair and wound healing in a process involving the over-expression of Egr-1 transcription factor through the regulation of the ERK1/2 and p38 MAPK pathways.
Formononetin, present in soybean, Astragalus membranaceus, Pycnanthus angolensis, Sophora flavescens, and Trifolium pratense, has shown anti-inflammatory, anticancer, and antioxidant effects.

Formononetin, present in soybean, Astragalus membranaceus, Pycnanthus angolensis, Sophora flavescens, and Trifolium pratense, has shown anti-inflammatory, anticancer, and antioxidant effects.
Formononetin, while beneficial, can cause side effects such as allergic reactions (rashes, itching, breathing issues), gastrointestinal discomfort (nausea, bloating, diarrhea), and hormonal imbalances, particularly in those with hormone-sensitive conditions. It may also interact with certain medications and potentially affect liver function with long-term or high-dose use.