Why is sunscreen so important? Sunscreen is vital even on overcast days because it protects us from harmful ultraviolet rays. These rays can lead to skin cancer discoloration and wrinkles if we have prolonged exposure. It is also important in Egypt especially for holiday goers visiting the beach as the sun is strong and many people every year suffer from heat stroke and sunburn. Factors and exposure Healthcare professionals strongly advise people to wear at least factor 30 (adult) and factor 50 ...