Thermal spa water is a naturally rich in anti free radical selenium to help soothe and decongest la roche posay thermal spa water is an essential skincare treatment for intolerant skin helping to soothe skin irritated by external factors the sun dermatological treatments etc and helps guard against skin ageing la roche posay is the dermatologists brand of choice recommended by 25 000 dermatologists worldwide the la roche posay thermal spa water is a truly active dermatolo