From the Greek words trikhos (hair) + logia (study), trichology is a science that identifies and treats ailments carried through hair. The first studies associated with this science were carried out in Ancient Greece, when Hypocrates conducted research to understand the problem of peeling (alopecia) some subjects were afflicted with. As such, though, this science has only been taught in schools since the end of the 19th century.

Today, trichology is characterised by an approach geared to the prevention of disease and maintenance of healthy hair and scalp. In this respect, plant biochemistry and research on the beneficial properties of essential oils and plant extracts are central. Trichology offers no miracle cures for hereditary problems, but numerous ailments may take a positive turn, thanks to appropriate health care.