**6. Conclusion**

This chapter discusses two of the most common species of *Cymbopogon* and their essential oils. The chapter showcases diverse phytochemicals of the oils, economic importance of *Cymbopogon* essential oils, detection, and quantification techniques of the phytochemicals of these essential oils obtained from *Cymbopogon* species. Additionally, different extraction and quantification methods for obtaining the essential oils were explicated. Findings from this chapter portray the different challenges associated with extraction and yields of these essential oils. Although chromatographic methods are commonly employed for extracting and quantifying these essential oils, there is need for improvement *via* the use of combined and more sensitive techniques for greater as well as pure yields of essential oils of lemon grass.
