An Ancestral Secret

The exploitation of the Thermal Spring water’s benefits is an age-old practice


Castéra-Verduzan Thermal Spring water used in our BUCCOTHERM products is a perfect example. 

Located between Toulouse & Bordeaux, in the heart of Gascony (Gers), this exceptional & natural water directly comes from Castéra-Verduzan thermal spa

It is said that in their own time, the Romans were already taking advantage of Castéra-Verduzan’s exceptional sources, whether it was the “Petite” or “Grande Fontaine”Roman camps had probably settled near the source. Castéra comes from the Latin name “Castra” which means “Camp”.

Obviously, the idea of using the benefits of this water did not stop at this time. Since its discovery, the citizens of Castéra have always put their trust in this thermal spring to cure all sort of ills, particularly those of throat and mouth. 

The modern products we are currently using provide from these old rituals: mouthwashes, gargles, and all hygiene practice based on this simple natural element and yet so powerful and generous benefactor. 

If thermal baths were created in 1817 by Le Marquis des Pins on the location of the big fountain, the thermal station is today one of the very first that offers cures exclusively dedicated to mouth care

Since 1983, the Thermal Spa has been approved by the French Ministry of Public Health for the treatment of oral affections and periodontal diseases. In 1999, a new drilling called “Renaissance” sparked from the earth depth this sulfated water composed by calcium & magnesium at a temperature of 22°C. 

Castéra waters are mainly used as drinks, baths, global and local showers, irrigations & injections. The baths of these Thermal Spring water are known to be both tonic & sedative, and a real source of wellbeing

To find out more about the detailed program of Castéra-Verduzan thermal station cures, please visit their site.


Spa guests that comes every year by the hundreds continue to highlight the positive results of this so exceptional water on their health thanks to its amazing therapeutic efficiency

Among its areas of intervention, there are:

  • Gums affections (periodontal diseases)
  • Mouth & tongue inflammation 
  • Mucosa affection 
  • Dry mouth Bad breath (halitosis)
  • Canker sores
  • Lichen planus
  • Intolerance to fixed or mobile prostheses

It is thus drawing on the care performed into the Thermal Spa that ODOST Laboratory – Thermal Odontostomatology – strove to make the best benefits of Castéra-Verduzan Thermal Spring water for the health and the daily oral care thus giving rise to the first range of hygiene oral care based on Thermal Spring water called BUCCOTHERM®.