Calming Therapy Diffuser will bestow 6-8 weeks of aromatherapy bliss, This Tranquil therapeutic blend is perfect for moments when you seek calm and complete relaxation. A complex composition of 12 pure essential oils all selected for their calmative properties. 75% organic, non-toxic with only pure essential oils. The heart is lavender and neroli orange blossom, sandalwood, clary sage and chamomile add to the calming and sleep inducing properties. Infused with tops notes from mandarin and bergamot. Each bottle contains a very generous 50 mls of pure essential oils all infused in grain alcohol base. 165 ML gives 6-8 weeks of de-stressing aromatherapy, bottles are quality clear glass, with silver tops, the reeds are wide black premium quality.