L. () belongs to the Apiaceae family and is a herbaceous plant with various pharmaceutical properties, due to the different contents of bioactive compounds extracted mainly from its roots, as well as its leaves and rhizome. To date, this plant extract has demonstrated estrogenic, anti-inflammatory, antiproliferative, cytotoxic, antimicrobial and anti-neoplastic properties. Its estrogenic activity is justified by the presence of ferutinin, an ester of a sesquiterpenic alcohol that acts as an agonist for estrogen receptors, with a chemical formula equal to CHO. The component present in responsible for the toxicity of the plant is ferulenol, a prenylated coumarin with the chemical formula CHO. This compound is capable of inducing mortality via its strong anti-coagulant properties, leading to a lethal hemorrhagic syndrome, ferulosis, in animals that feed on a chemotype of containing a high amount of ferulenol. The removal of the component ferulenol makes extracts of non-toxic. In fact, the remaining prenylated coumarins are not present in concentrations sufficient to induce toxicity. The intake of high concentrations of the extract of this plant leads a double dose-dependent effect that is typical of sesquiterpenes such as ferutinin. Here, we assessed the cytotoxicity and the estrogenic properties of the phytocomplex obtained through extraction using a mixture of acetone and water. Among the active constituents of , the identification of ferutinin and ferulenol was performed using HPLC. The effects of the extract were evaluated, following the removal of ferulenol, on three cell lines: human breast cancer MCF-7, human cervical cancer HeLa and human osteoblastic sarcoma Saos-2. The choice of these cell lines was justified by the need to mimic certain processes which may occur in vivo and which are estrogen-dependent. The obtained results demonstrated that extract, in addition to possessing an estrogenic-like property, showed a dose-dependent effect. Low concentrations (0.1-0.8 μM) demonstrated a hyperproliferative effect, whereas higher concentrations (1.6-50 μM) were toxic. Therefore, this extract could be an excellent candidate to make up for a reduction or lack of estrogen.