As the owner and producer of Hawthorn & Rose, it is incredibly important to me that that my customers are fully informed in terms of what you are putting on your skin. A previous post, Our Ingredients - No nasties, explained about INCI names and their purpose. As well as requiring ingredients to be listed on product labels by their INCI name, some of the natural components of essential oils must also be listed. That’s because some of these natural components are known allergens which can cause reactions in susceptible people. It is important to remember that even the mildest natural ingredients can cause sensitisation in certain people and we recommend using a small amount of product for 24 hours to check for any reactions. However, the quantity of essential oils used in our products falls well within safe usage recommendations and our recipes have been carefully formulated to produce mild products.