A dispersion of formononetin solid lipid nanoparticles and process for its preparation, namely having (i) a core system comprising formononetin, a lipid base, and a fluid medium, and (ii) an emulsifier system comprising an emulsifier, and water. The dispersion of formononetin solid lipid nanoparticles of the present disclosure can be used for treating cancer, osteoporosis, diabetes, and inflammation. The dispersion of formononetin solid lipid nanoparticles of the present disclosure are biocompatible, biodegradable, has improved solubility, has enhanced controlled drug release profile and are stable.
