La Roche-Posay Toleriane Sensitive Prebiotic Moisturiser 40ml is a lightweight, fragrance-free moisturiser specifically designed for sensitive, easily irritated skin—including that of babies and children. It works by hydrating, soothing, and reinforcing the skin’s natural barrier while supporting its microbiome with a unique prebiotic action, largely thanks to the inclusion of La Roche-Posay Thermal Spring Water and ceramides.