Description: ISDIN Fusion Water Magic by Alcaraz SPF50 is an ultra-lightweight facial sunscreen for sport, offering Full Spectrum protection against UVB/UVA, blue light, infrared and pollution, with Thermal Aging Protection against heat-induced oxidative stress. how to use? Apply generously to dry skin, spreading evenly over face, neck, nape and ears. Reapply if sun exposure exceeds 2 hours.