Aromatherapy – Selection of Essential Oils, History and Application

Aromatherapy represents a comprehensive healing modality that employs highly concentrated botanical extracts—known as essential oils—administered via inhalation, topical skin application, or mucosal absorption. Its foundational principle lies in harnessing the bioactive properties of plants, whose essential oils encapsulate their therapeutic essence. These oils are derived from various components of aromatic plants, including floral petals, stems, seeds, roots, and resins, with steam distillation remaining the most prevalent extraction technique. Each essential oil exhibits a distinct spectrum of biological activity, encompassing antiseptic, antimicrobial, anti-inflammatory, and antiviral properties. Furthermore, they stimulate the body’s immune responses, enhance microcirculation, and demonstrate analgesic effects. Of particular significance is their impact on human psychological well-being, a phenomenon substantiated by contemporary scientific research; Austrian neuroradiologists have demonstrated that specific aromatic compounds significantly improve cerebral blood flow and directly activate the cerebral cortex, enabling essential oils to traverse the blood-brain barrier. Notably, aromatherapy is classified as a complementary medical practice founded on the use of volatile, high-potency substances. Following external application, lipophilic aromatic molecules rapidly permeate the epidermis and enter systemic circulation within minutes. Recent empirical studies not only validate the efficacy of essential oils but also expand their therapeutic applications. For instance, lavender oil—renowned for its anxiolytic properties—substantially enhanced academic performance in anxious students, suggesting its potential in modulating cognitive function. Lavender is additionally utilized in culinary arts and various everyday contexts.