Vicks VapoSteam provides the refreshing fragrance of eucalyptus and peppermint for use in steam. The soothing vapours penetrate nasal and throat passages quickly and safely to gently soothe and comfort. This unique formulation can be added to the vaporizer cup or directly to the water of the Vicks Warm Steam Vaporizer. For other units please consult manufacturers written instructions. Vicks VapoSteam is safer because it mixes readily in water and is highly water dispersible. It can be added directly to the water of any steam vaporiser so that there is no need to use the vaporizer cup. This reduces the possibility of children accessing VapoSteam, reducing the risk of accidental poisoning. Steam therapy is non-invasive so can be used as often as required without causing side effects such as drowsiness. As Vicks VapoSteam mixes in water, the effect of the essential oils is prolonged and enhanced, giving stronger, longer lasting vapours. Ensures VapoSteam vaporises slowly and evenly for maximum relief over a long period.