Despite the numerous benefits of lemongrass oil, its active agent known as citral or its isomers geranial and neral
are unstable compounds. Lemongrass oil can suffer oxidation and volatilisation or react with other formulation component
that may cause skin irritation. However, some of researcher reported that encapsulation is a feasible alternative way to
increase the stability of this compound [3] [13]. Besides that, the physical form of lemongrass oleoresin is liquid and
sticky forms make it difficult for storage and transportation, so it will increase in production cost. Lemongrass oleoresin
also has limited usage because of its low water solubility.