Biosynthesis of bakuchiol was examined using phenylalanine and mevalonic acid as substrates. It has been demonstrated that bakuchiol is derived from one phenylpropane (with the loss of one carbon atom) and two isoprenoid (C5) units.
A. Banerji and Chintalwar, G. J., “Biosynthesis of bakuchiol, a meroterpene from Psoralea corylifolia”, Phytochemistry, vol. 22, pp. 1945–1947, 1983.