This little Jewel has 9 different oils designed to help your antihistamines work like they are supposed to. lavender, sweet orange, eucalyptus, lemongrass, peppermint, basil, ginger, lemon, and geranium combine to help your system do its job of stopping the histamine response of sneezing, coughing and watery eyes during periods of allergy response. Our carrier oil is grapeseed. Roll on fingers Rub in and breath deeply. Normally with in a few moments you will notice changes for the good comes in two strengths regular and extra strength 10 ml