9 ounce bottles are sold in all twenty-eight of inSPArationâ€™s fabulous aromatherapy blends. Just add a few capfuls into your Spa or Hot Tub, or one capful into your Bath for that ultimate hot water enjoyment. inSPAration, the leading aromatherapy fragrance, for Spas, Hot Tubs and Whirlpool Baths has been manufacturing fragrances for over 30 years. Our unique aromatherapy blends are formulated for your hot water enjoyment, creating a rich soothing "Aromatherapy Experience." inSPAration's large variety of fragrances and fragrance blends create that ultimate spa experience while at the same time leaving your skin soft and moisturized. Tested by Dupont, Aristech and other leading acrylic manufacturers, inSPAration is proven to be safe for all Spa, Hot Tub and Whirlpool Bath surfaces. Ideal for masking those unwanted chemical odors without foaming, affecting PH Level, or water chemistry. Formulated specially for jetted systems whether for Spas, Hot Tubs, or Hydrotherapy Tubs, inSPAration has been proven safe for all motors, jets and acrylics. inSPAration contains no alcohol and is water-soluble.