Phytochemical Diversity and Antioxidant Potential of Dracocephalum Species: Current Knowledge and Future Perspectives

The genus Dracocephalum (Lamiaceae), comprising over 60 species predominantly distributed in Europe and Asia, has historically been used in traditional medicine and has recently attracted growing scientific interest due to its diverse pharmacological and phytochemical properties. Despite increasing pharmacological and phytochemical investigations, the antioxidant potential and related bioactivities of Dracocephalum species remain fragmented across individual studies, with limited efforts to comparatively integrate evidence on phytochemical diversity, antioxidant relevance, and pharmacological variability. Therefore, this review consolidates and critically evaluates current knowledge regarding the phytochemical diversity, antioxidant potential, and therapeutic applications of Dracocephalum species, emphasizing their bioactive compounds and antioxidant-driven mechanisms. Particular attention is given to polyphenolic and phenolic constituents—including flavonoids, phenolic acids, terpenoids, and volatile compounds, with rosmarinic acid, tilianin, luteolin derivatives, and apigenin derivatives identified as key contributors to biological activity. Unlike previous reviews, which primarily focused on isolated pharmacological effects or individual species, this study provides a comparative and integrative perspective by linking phytochemical composition with antioxidant-related activities and therapeutic implications across species. By synthesizing fragmented evidence and highlighting methodological advances in chromatography, metabolomics, and comparative analyses, this review identifies current knowledge gaps and outlines future perspectives for phytopharmaceutical, nutraceutical, and functional food applications.