Women begin to lose bone density at the age of 30, although menopause doesn't typically begin until long after. Decreased bone density is a hidden danger in women, discovered only by testing or when a fracture occurs. Genistein tells the cells in your body to increase bone formation. In addition, our soy isoflavone Genistein is a non-estrogen hormone that mimics what natural estrogen does in the body. Genistein binds to the same estrogen receptor in the body that natural estrogen binds to, tricking your body into thinking that it is estrogen. This chemical competition is enough to make a difference in symptoms but not clinically significant enough to be concerning for estrogen dependent medical conditions.