Lavender - flowers (Lavandula officinalis). Lavender is the most used and talked about of all essential oils. It is an excellent skin rejuvenator, is antiseptic and used for the benefit of all skin types. It is useful for insect bites and stings and is a must for travel and holidays. This versatile oil is balancing, soothing, restful, calming and blends well with all other essential oils. It has a sweet and slightly heady aroma.