Essential oils are highly potent, steam-distilled plant extracts. Though completely natural, they must be handled and used with care.
Essential oils are used medicinally by aromatherapists. Like any medicine, these natural chemicals can be harmful if used improperly. It’s important to research any essential oil before using it in your routine. You’ll need to determine its recommended dilution, and check to see if the oil has any restrictions for use. Certain essential oils can be disruptive to medical conditions like pregnancy, high blood pressure, or epilepsy.
As a rule, any essential oil you are working with should be diluted to around 1–3% for use in skin care. That means that the oil needs to be blended with a carrier oil to be used directly, or used in very small proportions in recipes and formulations.
It's important to note that essential oils should be used with extreme care on children and babies. Kids and babies can't process the chemicals in essential oils as easily as adults. If you're, I recommend consulting a doctor or aromatherapist before using or handling any essential oils.
While there are thousands of essential oils available, I tend to lean on a handful of favorites. Choose one or two that suit your skin type, and invest in small bottles of high quality oil.