Abstract: The invention is related to the necessities of life, especially to cosmetology, pharmacology and, more specifically, to dermatology. This invention is the specific subject of a new use of lignans for making cosmetic, pharmaceutical and especially dermatological compounds, used to reduce sebum secretion through topical application. The invention also involves a cosmetic care process consisting of applying lignans, possibly in the form of cosmetic compounds, on the area of body and/or facial skin to reduce sebum secretion. Regarding this invention, the compounds are used in particular for the care and/or topic treatment of the body and/or face.