Rigo Spa steam essence milk is a milky white water based emulsion of Natural Oils for use in steam rooms. Rigo Spa Milk is market leading in strength of aroma and can be diluted 1:20 parts water. Our UK Manufactured Milk Essence has no artificial agents, is non-flammable and does not require solvents to increase short term aroma due to the amount of natural oils included in the mix.