Blend of lavender and vetiver and other oils that promote relaxation and sleep. To be used in a diffuser unit or inhaler or jewellery made for diffusion. I have also used while traveling on a cotton ball near my head in the bed to assist in inhalation benefit. Slow relaxing breathing is very helpful in getting some good impact from this Blend. Inhale for 5, hold for 5 and exhale for 5 and repeat 3 times. Best seller and many positive testimonials.