Rose oil
The well-known essential oil is probably rose oil, produced from the petals of Rosa damascena and Rosa centifolia, family Rosaceae. Steam-distilled rose oil is known as "rose otto" while the solvent extracted product is known as "rose absolute". It is used more commonly in perfumery. The key flavor compounds that contribute to the distinctive scent of rose oil are beta-damascenone, beta-damascone, beta-ionone, and oxide.
Eucalyptus Oil
Eucalyptus oil is the generic name for distilled oil from the leaf of Eucalyptus , a genus of the plant family Myrtaceae. Eucalyptus oil can help to get rid of dandruff, which in turn can help to promote healthy growth of hair. Just mix about 9 to 10 drops of eucalyptus oil with shampoo and then gently massages scalp for a few minutes, after which rinse it off with water. Massaging scalp with eucalyptus oil can stimulate blood circulation and thereby, making hair healthy and beautiful. [18]
Citronella oil
It is one of the essential oils obtained from the leaves and stems of different species of Cymbopogon family Cardiopteridaceae, as shown in figure 5. The crisp, rich citrus or lemon like aroma of this oil drives away body odour and is used deodorants and body sprays, although in very small quantities, since it heavy doses it may give skin irritations. It can also be mixed with the bathing water to have a refreshing, body odour ending bath.