According to balneological rules the SPA of Lavey-les-Bains (Switzerland) is called a “sodium-sulfate-chloride-sulfur thermal water, containing lithium, fluoride and boric acid”. It contains silicic acid and in less important portions hydrogen carbonate (bicarbonate) and calcium and has a slightly increased iodine values. With a temperature of 65 degrees Celsius, it is the hottest SPA in Switzerland. It is known as a hyper thermal SPA. The minerals, trace elements and molecules originate from 200 million year old salt deposits of the primordial sea Tethys.
The Mineral Treasure of the primordial sea Tethys
Measurement in situ
Temperature (°C): 65
Conductivity (µS/cm): 1910
Eh (mV): -230