Abstract: Systems and methods for synthesizing natural base steroidal hormones and more especially estrogens and progesterone and estrogen-like and progesterone-like compounds and their derivatives which are derived in the form of phytohormones from herbaceous plants and formulated to provide a broad spectrum of estrogenic and/or progesterone activity for influencing physiological processes and biological functions. In particular, phytohormones (i.e. phytoestrogens and/or phytoprogesterone) are synthesized from herbaceous compounds selected from a group consisting of plants having a propensity for simulating estrogenic and/or progesterone hormonal activity that, when entering the bloodstream of a biological organism, either by means of oral ingestion, parenteral injection, or topical application, have a tendency to enhance, supplement and/or maintain estrogen and/or progesterone hormonal levels by means of replacement therapy within a biological organism.