Our products (roll-ons, essential oil blends, single oils) are made exclusively from 100% natural essential oils. Since the quality and chemical composition of these natural raw materials depend on many variables such as the plant’s origin, the season, the climate conditions at harvest, and the processing time – it is only natural that no batch of a single essential oil will ever be 100% identical to the previous one. This inevitable natural variability means that even our final essential oil blend may vary slightly in its aromatic notes or intensity. These subtle nuances are, however, proof of the product’s authen­ticity and natural composition, not a sign of reduced quality. We always follow a precise recipe and use the highest quality ingredients. The quality of CTEO® allows for all common aromatherapy applications. However, it is always necessary to respect the principles of safe use and not to exceed the recommended dosage of essential oils. A sensitivity test is recommended before application to the skin. (Try a small amount of essential oil diluted according to the carrier oil formula on the wrist. This is how you find out if the mixture suits you.) Children are extremely sensitive to the effects of essential oils, so it is essential to always consult a specialist and take special care when using them. Sensitive and chronically ill individuals, pregnant and nursing women should also always consult a certified aromatherapist or physician when using a blend. Anyone with persistent feelings of discomfort should do the same. Great caution is also required if animals are in the vicinity during your inhalation. They need to be given time to leave the room.