One should also do a “patch test” prior to using any oil so you know in advance if you may be allergic to that oil. You can do this by applying the essential oil (with a carrier oil) to the inside of your elbow. If there is no reaction within a days’ time you should be fine.
6 drops of Essential Oil = 1 large lemon
It takes around 30-60 roses to make 1 drop of oil- and therein lies the price of rose, and the intense concentration
7 lbs of Lavender to make 30 mls (1 oz)
Would you consider rubbing 60 roses on your skin? I would hope not!
This is why it is so important to use a carrier oil and to dilute the oils properly.
There are certain oils which are more high risk to sensitization. They are as follows: Bay Pimento racemose, Cinnamon bark Cinnamomum zevlanicum, Clove Bud Syzgium aromaticum, Citronella Cymbopogon nardus, Cumin Cuminum cyminum, Lemongrass Cymbopogon citratus, Lemon verbena Lippia citriodora, Oregano Origanum valgare, and Thyme ct. thymol Thymus vulgaris. Please use great care when using these oils.