Lifesystems mountain spf 25 100ml is ideal for use in the mountains it is essential to protect exposed skin from the harmful rays of direct sunlight sunburn can occur very quickly at altitude the mountain sunscreens contain highly effective broad spectrum uv filters that protect the skin from harmful uva and uvb rays lifesystems expedition sun screens are also sweat proof so will last longer during high levels of activityplanning to go on holiday to a country which is at risk of mala