The Mr.Steam Essential Aroma Oils are specially formulated to be combined with luxurious steam, presenting invigorating scents all throughout your steam shower. Pure essential oils made from natural plant extracts For use with towel warmer and steamhead wells Formulated to work in harmony with the color settings of the ChromaSteamX System One of each is included: Eucalyptus, Lavender, Evergreen, Energizing Mint, and Breathe