Our Tub Tea is a wonderful soothing blend of high-quality salts, botanicals and essential oils to give you the spa treatment you deserve from your tub. This no mess formula comes from tossing the bag of salts into your bath water allowing the salts to dissolve, then simply throw bag away. Essential oils are in a small glass vial, to keep the oils fresh. Open the vial, pour oils into bath water, they will emulsify with the bath water. please recycle glass vial when you are done enjoying your spa feeling tub time! Essential oils have emulsifier added to help disperse oils throughout water and to make them safe for on your skin.