Head Clear Vaposising Oil by Tisserand 0.32 oz (9ml) Oil Head Clear Vaposising Oil 0.32 oz (9ml) Oil Product From the Manufacture We are constantly updating and improving our formulas sourcing and using new ingredient alternatives that are mild to the skin and wherever possible organic and therefore kinder to the environment. What percentage of essential oil is included in Tisserand products Most of our products contain between 1 and 5 of essential oil. The precise amount in each product is determined by safety considerations of the essential oils used the function of the product and the percentage required to make the product effective. Do Tisserand products contain herbal extracts Herbal extracts - the majority of which are organic - are used in most of our products. They enhance the performance of the product as they work in synergy with the essential oils. They also have their own therapeutic benefits - they can be soothing refreshing cleansing astringent deodorizing conditioning