Vichy and La Roche-Posay products are sourced at the eponymous thermal springs. A number of in vitro and in vivo scientific studies prove that the water from each of these sources has specific medical virtues.
Thermal spring water in the village of La Roche-Posay is naturally very rich in selenium, a mineral with antioxidant and soothing virtues that are particularly adapted to sensitive skin, and is the source used at La Roche-Posay's Thermal Cure - the leading thermal dermatology centre in Europe. Water is also the base ingredient for all of the brand's products that are elaborated to complement treatments prescribed by dermatologists.
Vichy's thermal spring waters are distinguished as the richest in micronutrients including15 rare minerals such as iron, potassium, calcium manganese or silicon - all of which sooth, strengthen and renew skin. Vichy spring water rises up from the heart of volcanoes in the Auvergne region: rainwater filters as far down as 500 meters through cracks in the crystalline massifs, before filtering 100 km through ancient rock and enriched in minerals. At Vichy, naturally produced carbonic gas pressures the water to rise without a pump. Just like at La Roche-Posay’s, Vichy thermal water is used in all of the brand's products.
Did you know?
1/ 9 springs are currently exploited. The 5 oldest known Vichy sources are used for drinking water: Célestins, Chomel, Grande-Grille, Hôpital and Lucas. The development of thermal spas has required more water however, and 4 pumps now supply naturally hot thermal water (between 60 and 70°) to the thermal stations.
2/ The first thermal spa at La Roche-Posay opened in 1905. Every year, 8 000 people come to cure eczema (35% of patients), psoriasis (31%), or to recover from cancer treatment (16%) and burns (10%).