La roche posay hydraphase uv is ideal for skin which is prone to dryness an innovative targeted moisturisation technology adapted to moisture demand in each area of the face provides intense lasting moisturisation with a formula that contains water from the roche posay hydrotherapy spa to soften glycerin to moisturise and sodium hyaluronate to fix moisture la roche posay thermal spring water undergoes no processing leaving all of its components intact and its properties unchanged