La Roche-Posay Toleriane Ultra Fluid is a lightweight moisturizing fluid specially formulated for ultra-sensitive and allergy-prone skin. This dermatologist-recommended product provides soothing hydration while helping repair and protect the skin barrier. The product contains La Roche-Posay's Thermal Spring Water and features Microbiome Science technology. It is designed to be gentle enough for daily use on reactive skin types. The fluid texture absorbs quickly without leaving a greasy residue. As a personal care product focused on sensitive skin treatment, the formula is likely free of common irritants and allergens, though specific ingredients are not listed in the provided information.