Peter Thomas Roth Hungarian Thermal Water Mineral Rich Atomic Heat Mask 150ml/5.1oz This fountain of youth mask harnesses the power of Hungarian thermal water botanicals and modern technologies. For years people came from afar to soak in the mineral-rich fountain of youth thermal waters of the Hungarian spas owned by Peter s grandparents. Today Peter uses the most mineral-rich thermal water on earth from a secret spring deep below Hungary s Carpathian Valley where the earth s crust is the thinnest allowing water to absorb the most minerals as it bubbles to the surface. Rich and luxurious this hydrating mask transforms with cool water into an invigorating flash of heat to open pores and optimize nutrient absorption.