Essential oils are oily, volatile, odoriferous products that they express vegetables, either by distillation in the steam, or by separation, or else by enfleurage.

Every essential oil has ownership which are specific to him. They can act on:

• vessels
• nervous endings
• the phenomena of internal physiology

However, there is three ownership which, are common in all essential oils:

• a power of penetration in the epidermis very quick (about twenty minutes)
• an anti-contagious power which makes them therefore bactericidal
• an action on the tégument and on subcutaneous cellular tissue as well as deeper actions on the muscle and on pronunciation.