Zinc based natural sunscreen: A natural and safe alternative for heavy duty sun protection. Tested and developed by scientists and surf teachers. Perfect for use when surfing, kiting, biking, hiking, you name it. Suntribe is a mechanical sunscreen which creates a layer of UV protection on top of your skin. It\'s a natural way to protect the most sensitive parts of your skin. Suntribe has Broad Spectrum Protection & SPF 30. The thick formula is developed mainly for facial use but can be applied on all exposed parts of skin. How to use: We usually apply a seemingly transparent layer when only spending a few hours in the sun. Whereas when spending the whole day surfing or skiing, we apply a thick white layer. Easiest to apply when warm. In colder temperatures it\'s enough to keep Suntribe Sunscreen in your pocket or warm the tin in your hand for a minute. Will last for approximately three months with daily use.